Wiring for running, brake and turn signals, for flat towing, behind tow vehicle Options

[DanT]

Anyone done the clean set up of actually tapping into the existing wiring or harness to run turn signals, running lights, and brake lights?
Running these off the tow vehicles lighting circuits. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
I am sure it can be done, just want to know if anyone has gone here before.
If so how did you do it, what does your wiring diagram look like?
No I am not interested in aftermarket magnetic tow lights.

Thanks

[racergreg]

Dan, I did this about 5 years ago and have been flat towing it ever since. Works great. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)

I just tapped off of the wires leading to the brake lights and rear turn signals...

*** BUT ***

I had to use diodes between the towing wires and the car wiring. This prevents the voltage from the tow vehicle feeding back into the 914. When I tried it without the diodes, I got lots of weird effects and I'm sure it was not good for the car's electrics, particularly the gauges.

I got the diodes from my local Camping World. They are sealed units with spade connectors, easy to mount and wire up. I used four, one for each turn signal light and one for each brake light. Three would probably work, but I chose to split the brake light wire before the diodes rather than after.