How would you wire some auxillary backup lights on a 06 3500 dually and what ones do you guys prefer? Cannot see a damn thing at night when I back this beast up! Thanks!
I will have to look at the cargo light wiring. I don't know why that would be any different than the rest of the truck. If you wanted to be able to turn them on as you say and also have them turn on with the reverse lights you could do it with a relay and feed with the signal with both with diodes in line on each. If I understand the cargo light it goes through the bcm.I remember asking about how to hook up aux reverse lights to the existing cargo light switch in the cab about a year ago. Cleaner look (no extra switches) and the indicator light for the cargo will remind you if you accidently left it and the reverse lights on. Got some feedback on how to install (it was a positive ground for the cargo switch) but needed someone to take pics and walk me through the wiring process and the responsed were not that clear to me. A search for "cargo light" or "reverse lights" will come up with some threads on this but still looking for a good step-by-step instruction with pics that could be used for a sticky.
Thanks in advance.
I tapped the wire for the trailer plug back up light which is independent of the regular back up lights...
Im guessing you guys are talking about the same wire here?8 of my '05, '06, and 07.5 GMC's have these http://www.servicemate.com/catalog/partdetail.aspx?PartNo=250 wired directly to the trailer backup wire (lt grn) without a relay and never a problem, ever.
In the 7 wire bundle feeding the factory trailer plug, there is a light green wire. This wire will support 10 amps of draw and becomes active only in reverse. So, yes, we are talking about the same wire. You can splice to it, or like me, since I don't have backup lights on any trailer, I just cut it.Im guessing you guys are talking about the same wire here?
Does this cause the lights to automatically come on when the truck is put into R?
I also like the idea of having a switch to manually turn them on for a work light or something as well.