Originally posted by unreality
the wire that lights the tester with the key in off and acc is unswitched power
the wire that raises the antenna actually goes to the relay that raises the antenna
creating your own ground is a good idea, and i think that you don't even really have to go as far as the shifer, but you should do what works best for you.
if I remember right, the ground wire was a lone wire with a brown endcap... I think it was yellow. It has been a while though, so don't rely on my advice on that. Instead, take that unswitched power wire that you found, and try to ground it out using other wires in there (or create your own ground)
that sounds like great advise if you are a Buss stock holder, cause your gonna go through a shitload of fuses doing something dumm like that... use a DVM to test for power sources, NEVER go apply wires to other wires in an attempt to figure out the wiring, thats a recipe for frying fuses or worse the radio your trying to hook up