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

[DanT]

Got it all done. Thanks for the tips and the info racergreg.
Pretty much like you said. Went down to Campingworld in San Martin today and picked up my supplies. 4 diodes and 30' of 4 wire loom. GYBW.
Took about an hour to run wires to front left of front trunk and back to rear left of rear trunk
Installed diodes one for each running lights feed from car, brake/turn.
Doing it this way eliminates the amber/red normal signal markers when car is being towed, everything works as normal when driving car solo.
What it does is uses the running lights as normal, then uses the running/brake light on the 914 to do the brake and turn duties like most trailers are wired.
Now the brake/running is now the brake/ turn and running.
Everything is sef contained now. No magnetic lights or extraneous wires running along the outside of the car while towing.
This along with my tow bracket I got from David Lee and my flat towing is clean and simple. Only need to disconnect two pins for the tow bar, two saftey chains and one simple 4 prong plug for the lights.
2 minutes to hook up or unhook. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)