1972 GM AM Radio help!

[alex68rs]

Hi I have a 1972 gmc sierra grande and I'm looking for wiring diagram or something that explain how those radio works inside. I just dissasembled everything but without any info it's kind of hard. Radio don't work, bought on ebay beacause when I bought the truck the radio was missing.

Any help will be appreciated!

[SS Tim]

You want to find a period Sam's Photofacts repair manual. They can be found on eBay without too much trouble. The hard part is finding the issue for the part number radio you have. If your radio has a sticker on it you should be good to go.

Did some research for jocko that I will try and dig up later.
Sam's now has a site as well but you do need the model number.