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Radio wiring

12K views 7 replies 5 participants last post by  rowdie 
#1 ·
Anyone have a diagram of the wires for a the stereo in my 74 SLC us.
I am about to put a new head-unit in and would like an idea of what wires are what so i can splice a new harness in.
Cant seem to find it.
I am sure brown is ground and blue in antenna.
 
#6 ·
I Ordered from clutchfield they didn't have a plug in for my year but its didn't matter since the one that was in there was hard wired and cut from stock. Anyways got it in power up but very little sound to no sound coming out no matter the volume level.

Is there an amp for the speakers?
 
#7 ·
after a lot of switching wires i realized that a black cable gets hooked up to all the negatives off of the head unit. Have sound and since my cigar lighter doesn't give power i can charge things again.
Sorry for being a semi idiot and wasting time. Hope this will help someone one day.
 
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