Looking to get a GMC OEM dash radio for a song, but you would probably rather just give it to me without the song. Only practical application for said song would be if the Gov't was looking for an alternative to waterboarding.

Can pay full shipping cost as long as the number to the left of the decimal is pretty small.

If you have one that you have been moving from shelf to shelf every time you tidy up, now is the time to let it go.

Sir, rumor has it GMC changed speaker grounding around 75 or 76. So radios might be different?? Is the radio you want for one of your 73s. How can I telll if what I got is what you want? Some radios had a amp box (?? ) beside the glove box under the dash?

Sir, rumor has it GMC changed speaker grounding around 75 or 76. So radios might be different?? Is the radio you want for one of your 73s. How can I telll if what I got is what you want? Some radios had a amp box (?? ) beside the glove box under the dash?

My 1976 has 2 wire speakers. I know a 74 had 1 wire speakers and used ground for the return.
The two types do not play well in the wrong coach.

GM radios used a ten Ohm speaker with one side grounded. This had two positives - it cut the cost of wire, and allowed the radio output stage to be a bit less expensive to build. Ten Ohm speakers aren't common, but in the quantities a manufacturer buys them, they can have the shape and impedance they want for no extra charge.

GM also offered an AM FM CB which appeared in some coaches. All of the OEM radios were the same panel size, you can swap one for another as long as you respect the speaker impedance and hookup. Grounding one side of the output of a modern radio will do Bad Things for it, run two wires.

--johnny

Sir, rumor has it GMC changed speaker grounding around 75 or 76. So radios might be different?? Is the radio you want for one of your 73s. How can I telll if what I got is what you want? Some radios had a amp box (?? ) beside the glove box under the dash?

C Boyd wrote on Tue, 09 May 2017 19:58

Sir, rumor has it GMC changed speaker grounding around 75 or 76. So radios might be different?? Is the radio you want for one of your 73s. How can I telll if what I got is what you want? Some radios had a amp box (?? ) beside the glove box under the dash?

Mr. Boyd, Sir,

I have decided the year model is not a problem, speaker wires can be ran to satisfy the radio.

So whatever you got is probably what I want.

Let me know what you are willing to part with.

Mark, I escaped off house arrest today and should be back in the barn tomorrow. I don't know what if anything I got works but you are welcome to it.. pm me a shipping address.

C Boyd wrote on Wed, 10 May 2017 20:04

Mark, I escaped off house arrest today and should be back in the barn tomorrow. I don't know what if anything I got works but you are welcome to it.. pm me a shipping address.

Are we likely to be able to use Jon's delivery service again? Or would that be excessive exploitation of his kindness?

I have an original dash radio with 8 track player and remote amplifier laying around. Was operable when I removed it 10 years ago. I will gladly give it to you if you'll pay the USPS shipping. It's about a cubic foot and weighs around 20 pounds!!!!

Woody.

I have an original dash radio with 8 track player and remote amplifier laying around. Was operable when I removed it 10 years ago. I will gladly give it to you if you'll pay the USPS shipping. It's about a cubic foot and weighs around 20 pounds!!!!

Woody.