Constant Power in engine bay????

**11move** · 04-24-2008 10:25 AM

Hey there I am looking for a wire that I can tap into that has constant power with ignition on and once ignition is off there would be no power. I need this source to be in the engine bay, I thought I had the wiring diagram for the B5 but I dont and can not find this info, I was thinking into taping into the ignition coil but that would be my last choice any other ideas?

**onemoremile** · 04-24-2008 10:28 AM

What are you wiring in? Does it draw a lot of current? You could run a wire through the ECU firewall opening to the 75x tap.

**11move** · 04-24-2008 11:18 AM

The fog lights, as I have to install a relay control and need power to run the module for the DRL's

**Vreihenmotor6** · 04-24-2008 11:48 AM

um, how about the battery?

**AudiRacerS4** · 04-24-2008 01:26 PM

Originally Posted by Vreihenmotor6

um, how about the battery?

the battery always has constant power and doesnt turn off with the car so it cant be used to run fogs

**11move** · 04-24-2008 01:29 PM

Originally Posted by Vreihenmotor6

um, how about the battery?

Yeah I would run the power source dry then :D thanks

**11move** · 04-25-2008 08:01 AM

Bump
anyone???? Does anyone have the B5 wiring diagrams?

**oneighty** · 04-25-2008 08:10 AM

just get a meter and put it on 12VDC and poke around, im sure youll find something.

**onemoremile** · 04-25-2008 08:31 AM

Run a wire through the ECU firewall opening to the 75x tap and use it to trigger your relay.

FWIW, this is how I ran power to my headlight motors.

**Mawhitey** · 04-25-2008 08:38 AM

wire the relay up inside the car and then just run the wires to the fogs/ DRL, easy to place the realy out of the weather and connect to the x75 and or x30 pins,dependant what you need