 Buzzing sound in my radio ? Need sound advise, Link added to a car audio DIY Education |
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| TC 914-8 |
 Jun 13 2011, 10:30 PM
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#1
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Senior Member  Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest 
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I was triing to clean up my center console the other day and moved my booster from inside the console to the outside, passenger side. once I did that I have a very loud and obnoxious buss in my raido. If I plug in and play my I Pod directly into the booster, no noise (IMG:style_emoticons/default/confused24.gif) . I have grounded the raido, booster, even went as far as grounding the sheilds of the RCA cables (and tried different cables) into the booster. That seemed to quiet it up a slight bit but still buzzes when the FM, CD is on.
I then went to raido Shack and picked up a noise supressor (inline capacitor) Still didn't help. I am begining to think Ignition or Alternator? Every thing was fine till I moved the booster from inside to the outside. This happened once before but not as severe, I just moved a few wires around and it went away. Any ideas?? Here is the link I found good for the DIY guy who knows enough to be dangerous. http://www.bcae1.com/ |
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Replies(1 - 19)
| Mike Bellis |
Jun 13 2011, 10:34 PM
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#2
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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The sound you hear is the ignition and alternator. That does not mean they are bad. If it only does it with the radio and not with your ipod, the most likely problem is the radio ground. Check the ground wire terminal. Find where it is grounded and clean the connection. It should get better. Ground the booster and radio to the same chassis screw.
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| Elliot Cannon |
Jun 13 2011, 10:37 PM
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#3
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
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Take the radio out and listen to your car. (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/laugh.gif)
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| TC 914-8 |
Jun 13 2011, 10:48 PM
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#4
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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QUOTE(kg6dxn @ Jun 13 2011, 09:34 PM)  The sound you hear is the ignition and alternator. That does not mean they are bad. If it only does it with the radio and not with your ipod, the most likely problem is the radio ground. Check the ground wire terminal. Find where it is grounded and clean the connection. It should get better. Ground the booster and radio to the same chassis screw. Yep I did all that, I have a #8 grounding the booster thru a 10mm bolt on one of the dash mtg bolts. I took the radio ground to the #8, even soldered the terminals. then I even grounded the radio chasis with the support band and bolted it ti the dash brackets. Do you think by some chance the intrenal filter in the radio failed? I was going to buy a cheap o radio and see if it stops? |
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| TC 914-8 |
Jun 13 2011, 10:50 PM
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#5
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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QUOTE(Elliot Cannon @ Jun 13 2011, 09:37 PM) Take the radio out and listen to your car. (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/laugh.gif) You're absoultly right Elliot, Nothing beats the scream of the V-8 when wide open but I have to keep the wife entertained when on the WCR ride to crater lake |
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| messix |
Jun 13 2011, 11:31 PM
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#6
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords]
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| TC 914-8 |
Jun 13 2011, 11:34 PM
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#7
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) |
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| messix |
Jun 13 2011, 11:35 PM
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#8
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? |
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| TC 914-8 |
Jun 13 2011, 11:40 PM
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#9
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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QUOTE(messix @ Jun 13 2011, 10:35 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? YES Any time the RCA cables are plugged in and he engine is on it buzzes. FYI I also removed the Bosch-4 Sparks and went with stock Delco plugs. But I cant remember when I did what |
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| messix |
Jun 13 2011, 11:44 PM
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#10
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
QUOTE(TC 914-8 @ Jun 13 2011, 10:40 PM) QUOTE(messix @ Jun 13 2011, 10:35 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? YES Any time the RCA cables are plugged in and he engine is on it buzzes. FYI I also removed the Bosch-4 Sparks and went with stock Delco plugs. But I cant remember when I did what you need to run resistor plugs and restistor plug wires. |
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| messix |
Jun 13 2011, 11:45 PM
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#11
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
QUOTE(messix @ Jun 13 2011, 10:44 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:40 PM) QUOTE(messix @ Jun 13 2011, 10:35 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? YES Any time the RCA cables are plugged in and he engine is on it buzzes. FYI I also removed the Bosch-4 Sparks and went with stock Delco plugs. But I cant remember when I did what you need to run resistor plugs and restistor plug wires. and check to see if any of the plug wires are close to any power wires |
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| TC 914-8 |
Jun 13 2011, 11:50 PM
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#12
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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QUOTE(messix @ Jun 13 2011, 10:45 PM) QUOTE(messix @ Jun 13 2011, 10:44 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:40 PM) QUOTE(messix @ Jun 13 2011, 10:35 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? YES Any time the RCA cables are plugged in and he engine is on it buzzes. FYI I also removed the Bosch-4 Sparks and went with stock Delco plugs. But I cant remember when I did what you need to run resistor plugs and restistor plug wires. and check to see if any of the plug wires are close to any power wires Ya, Im sure they are all resistor type plugs and wires. Everything was fine and well til I moved the booster. Are you gonna be at the WCR? |
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| messix |
Jun 13 2011, 11:50 PM
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#13
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
QUOTE(TC 914-8 @ Jun 13 2011, 10:50 PM) QUOTE(messix @ Jun 13 2011, 10:45 PM) QUOTE(messix @ Jun 13 2011, 10:44 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:40 PM) QUOTE(messix @ Jun 13 2011, 10:35 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? YES Any time the RCA cables are plugged in and he engine is on it buzzes. FYI I also removed the Bosch-4 Sparks and went with stock Delco plugs. But I cant remember when I did what you need to run resistor plugs and restistor plug wires. and check to see if any of the plug wires are close to any power wires Ya, Im sure they are all resistor type plugs and wires. Everything was fine ad well til I moved the booster. Are you gonna be at the WCR? nope |
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| messix |
Jun 13 2011, 11:51 PM
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#14
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
QUOTE(messix @ Jun 13 2011, 10:50 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:50 PM) QUOTE(messix @ Jun 13 2011, 10:45 PM) QUOTE(messix @ Jun 13 2011, 10:44 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:40 PM) QUOTE(messix @ Jun 13 2011, 10:35 PM) QUOTE(TC 914-8 @ Jun 13 2011, 10:34 PM) QUOTE(messix @ Jun 13 2011, 10:31 PM) all of your audion equipment needs to be grounded at the same point. keep the rca cords away from any electric wires [do not bundle the power wires with the rca cords] Did that too (IMG:style_emoticons/default/headbang.gif) does it do it when playing a cd? YES Any time the RCA cables are plugged in and he engine is on it buzzes. FYI I also removed the Bosch-4 Sparks and went with stock Delco plugs. But I cant remember when I did what you need to run resistor plugs and restistor plug wires. and check to see if any of the plug wires are close to any power wires Ya, Im sure they are all resistor type plugs and wires. Everything was fine ad well til I moved the booster. Are you gonna be at the WCR? nope calling you now |
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| Tom |
Jun 14 2011, 12:43 PM
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#15
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Advanced Member Group: Members Posts: 2,139 Joined: 21-August 05 From: Port Orchard, WA 98367 Member No.: 4,626 Region Association: None |
Tony,
Does the buzz go up and down in frequency with RPM's? If so an inline filter kit will help a lot. Got one from Radio Shack many years ago and it worked. It has an inline inductor and a capacitor and instructions in how to install. The inductor goes inline on the power lead and the cap goes from one side to ground. You mentioned you got a cap to go inline from RS, but not sure if you got the right stuff. A cap inline will not filter any "noise " out. The people at RS these days don't understand electronics very well from my experience lately. I went in some time ago looking for some diodes and asked the young guy where they had them, he pointed out a cabinet - I went over and it was resistors. LOL!!! Had to look around and find them myself. Tom |
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| windforfun |
Jun 14 2011, 01:45 PM
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#16
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Senior Member Group: Members Posts: 1,833 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
QUOTE(Tom @ Jun 14 2011, 11:43 AM) Tony, Does the buzz go up and down in frequency with RPM's? If so an inline filter kit will help a lot. Got one from Radio Shack many years ago and it worked. It has an inline inductor and a capacitor and instructions in how to install. The inductor goes inline on the power lead and the cap goes from one side to ground. You mentioned you got a cap to go inline from RS, but not sure if you got the right stuff. A cap inline will not filter any "noise " out. The people at RS these days don't understand electronics very well from my experience lately. I went in some time ago looking for some diodes and asked the young guy where they had them, he pointed out a cabinet - I went over and it was resistors. LOL!!! Had to look around and find them myself. Tom (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) This filter is sometimes called a pi filter because it's schematic sort of has the shape of the Greek letter pi (one inductor & two caps). FYI. |
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| Jeffs9146 |
Jun 14 2011, 02:47 PM
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#17
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
Did you change anything on your power source wire or ignition source wire?
Sometimes adding a fuse or cutting and reconnecting the main or ign wire can cause resistance or even going to a longer wire can put a bit more load on the source attachment point and might be putting it close to the max load for the fuse! Also using a fuse or wire on the ground that is smaller than than the source wire can cause a problem! Just throwing it out!! (IMG:style_emoticons/default/confused24.gif) |
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| jmill |
Jun 14 2011, 04:11 PM
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#18
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
When I installed car stereos back in the day, I always kept the ground wire as short as possible and never spliced into a ground to lengthen it. Solder and shrink tube if I screwed up and had to. If I had a buzz I always suspected a bad ground.
When you say booster do you mean amp? When I did it for a living anything called a booster was cheap stuff. Things might have changed in 20 years. (IMG:style_emoticons/default/confused24.gif) |
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| TC 914-8 |
Jun 14 2011, 08:14 PM
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#19
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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Hi Guys,
Thanks for all the replies. Yes the frequency of the Buzzing does go up and down with the RPMs, also comes in louder when my electric fans kick in. The Capacitor (noise supressor) does have a ground, it was a cheap-o for $8 bucks, are there better ones? Also, when I say Booster I do mean Amp, yea, I'm old school. I will be home tomorrow night and give it one more once over I'll ground the grounds, and bring a new supply voltage line to the radio. |
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| TC 914-8 |
Jun 14 2011, 08:18 PM
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#20
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Senior Member Group: Members Posts: 812 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
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QUOTE(windforfun @ Jun 14 2011, 12:45 PM) QUOTE(Tom @ Jun 14 2011, 11:43 AM) Tony, Does the buzz go up and down in frequency with RPM's? If so an inline filter kit will help a lot. Got one from Radio Shack many years ago and it worked. It has an inline inductor and a capacitor and instructions in how to install. The inductor goes inline on the power lead and the cap goes from one side to ground. You mentioned you got a cap to go inline from RS, but not sure if you got the right stuff. A cap inline will not filter any "noise " out. The people at RS these days don't understand electronics very well from my experience lately. I went in some time ago looking for some diodes and asked the young guy where they had them, he pointed out a cabinet - I went over and it was resistors. LOL!!! Had to look around and find them myself. Tom (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) This filter is sometimes called a pi filter because it's schematic sort of has the shape of the Greek letter pi (one inductor & two caps). FYI. Ahh, The one I have isn't that advanced, I'll look for one of those. |
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