Can someone tell me how to connect the under-hood wires for a trailer brake control and the trailer battery charging wire? I have a 2008 GMC Yukon XL. I just took delivery today. I have everything connected under the dash, but the 12v feed for the brake control and the trailer battery charging wires are not connected from the factory. I have found the wires, but I don't know where they connect.
Yes, I could ask my dealer who wouldn't even charge me to do it, but I forgot to ask while I was there today and it seems like it should be a simple thing to do myself.
Thanks.