Does anybody know where I can tap the Retained Acc Power (RAP) on an
03 GMC Sierra? I am adding XM radio and would like it to stay on with the radio. I have been through the fuse box and the door fuse boxes but could not find a RAP feed.For those of you that are going to tell me "behind the radio", in 03 GM changed the design of the radio. It has 12 volt battery and a switched/logic signal that tells the radio to go on or off.
Thanks,