 Third Brake Light, Best Wiring Location |
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| jdamiano |
 Jan 14 2022, 03:51 PM
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#1
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Member  Group: Members Posts: 268 Joined: 18-March 18 From: Jacksonville Member No.: 21,981 Region Association: South East States  |
I’m adding a third brake light on the inside of the rear window. Can anyone save me some time with my multimeter under the dash and tell me the best place to pick up the brake lights wiring?
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| rjames |
Jan 14 2022, 04:00 PM
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#2
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I'm made of metal Group: Members Posts: 3,363 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest 
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I just ran the wires under the roof and sail chrome trim, into the engine bay and along the wires in the trunk, and then made the connections directly at the tail light connection using a dual spade connector. Wiring is out of sight and easily undone if need be.
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| StarBear |
Jan 14 2022, 04:26 PM
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#3
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Senior Member Group: Members Posts: 761 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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(IMG:style_emoticons/default/agree.gif) Yep; me, too. Easy. Cheap. The 914 way!
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| barefoot |
Jan 14 2022, 06:06 PM
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#4
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Senior Member Group: Members Posts: 1,046 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
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With the backed removed, easy access to brake light wires in the tunnel easy to conceal wiring (IMG:style_emoticons/default/beerchug.gif)
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| Geezer914 |
Jan 15 2022, 06:26 AM
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#5
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Senior Member Group: Members Posts: 595 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: None
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You can splice into the brake light wires that run under the relay board instead of going all the way back to the tail light.
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| Spoke |
Jan 15 2022, 07:17 AM
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#6
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Jerry Group: Members Posts: 6,596 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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I picked up the brake signal at the driver side rear light fixture. Used a spade connector and a 2:1 male-female connector to make the connection. Taped the new wire to the existing wire loom. Connected the ground on the chassis lug behind the relay board.
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| 930cabman |
Jan 15 2022, 07:48 AM
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#7
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Senior Member Group: Members Posts: 1,012 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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I cannot recall the thread, but if you look for "BBrock" he added one to his 914 project.
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| rjames |
Jan 15 2022, 01:35 PM
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#8
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I'm made of metal Group: Members Posts: 3,363 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest
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QUOTE(jdamiano @ Jan 14 2022, 01:51 PM)  I’m adding a third brake light on the inside of the rear window. Can anyone save me some time with my multimeter under the dash and tell me the best place to pick up the brake lights wiring? Where you put the wiring will depend on where you put the light. I'd recommend mounting it outside of the cabin, otherwise you're going to get reflection off of the rear window- especially at night. |
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| StarBear |
Jan 15 2022, 02:04 PM
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#9
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Senior Member Group: Members Posts: 761 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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QUOTE(rjames @ Jan 15 2022, 02:35 PM) QUOTE(jdamiano @ Jan 14 2022, 01:51 PM) I’m adding a third brake light on the inside of the rear window. Can anyone save me some time with my multimeter under the dash and tell me the best place to pick up the brake lights wiring? Where you put the wiring will depend on where you put the light. I'd recommend mounting it outside of the cabin, otherwise you're going to get reflection off of the rear window- especially at night. (IMG:style_emoticons/default/agree.gif) |
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| Steve |
Jan 15 2022, 02:20 PM
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#10
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Advanced Member Group: Members Posts: 4,757 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California
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QUOTE(Spoke @ Jan 15 2022, 05:17 AM) I picked up the brake signal at the driver side rear light fixture. Used a spade connector and a 2:1 male-female connector to make the connection. Taped the new wire to the existing wire loom. Connected the ground on the chassis lug behind the relay board. (IMG:style_emoticons/default/agree.gif) I did the same thing. Much easier than going through the tunnel. I mounted a corvette convertible / 944 light to the top of my engine lid. I added a connector, to make it easy to remove the engine lid. https://www.google.com/search?q=corvette+3r...=r8KXQMC5aeyQ1M |
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