Back-up light ?

[jeffd]

I have a 2003 Siverado and want to add an additional BU light under the bumper. Anyone know the wire color going to the factory BU light on drivers side? Also, will this circuit handle a 100W H3?

 

TIA,

 

Jeff

[redchev]

I don't know the wire colors but I would use a relay to protect the factory switch. I had some on my truck for a while. The factory trailer plug should have all the wires you need and you could simply plug in when not pulling a trailer. All you need is the power lead(may have to hook up under the hood), ground, and the back-up signal wire. The relay should come with a diagram to wire it up properly. You may want to check if it is legal in your state first. It may save you some time and effort.

[badhammer]

the wire should be light green for the back up lights on both sides.