Newbee here. I am trying to find a wiring diagram of the reverse lamps tied into the helm. Can anyone help? Please email me at madhat78@yahoo.com

MadHat78

 

Don't know about an actual diagram, but this is a good site for wiring info
http://www.the12volt.com/

 

Here is the 2005 EVTM 93-1 reversing lamps.

Should be the same as the 2007, I don't think that changed ( mirrors did ).

 

Does anyone know which wire coming out of the reverse light I would tie into for the hydrolic brake system on a trailer hookup? There is a #16 green wire and it looks like a brownish wire thats half the size. Both of them are coming directly out of the bulb unit.

 

The reverse circuit in the tail lamp is Black w/ pink stripe wire ( shown in the diagram above ).

Be careful about how large the load is on what you are adding to the truck's reverse lamps, as 1 AMP additional load is not taken so well by this circuit.

Best would be to use the trailer tow reversing circuit for this.