Radio Question?

[BUICKGNX]

Hello everyone....Quick question....

I own a 87 gn with low miles. I had the car for a pretty long time and recently purchased a mint am radio for the 87 model year...for rpo U63. When i bought the car it came with a original am/fm cassette with eq GM radio. The car obviously did not come with this radio based on the codes. It was probably changed by the dealer where the original owner purchased the car. My car was a dealer ordered car apparently. Anyhow, my question is will the wiring be the same to put back the am radio and does it come with factory rear speakers with rpo U63? My gn has Delco rear speakers. I looked on the internet and checked the code for rear speakers. Is it U66? My gn does not have this RPO#. Will it be easy to change radios? I also realized that my front drivers speaker up on the dash does not work hardly. It is very weak. Tried changing the speaker with a new one but still the same. What is the best way to fix this problem?

Thank you guys

Michael

 

[SouthernCal GN]

Radio swap is extremely easy- take off the bezel, remove the screws, and swap the radio. Your speaker problem is more than likely in a) the radio or b) in the wiring.

Good luck!

 

[salvageV6]

The schematic I have for the AM/FM mono radio shows only 2 front speakers.

I would assume the AM radio would only have 2 speakers up front.

C1 is the power and antenna power connector that should swap directly.

C2 is the front speaker connector and should also swap directly.

If you have a C3 connector for your rear speakers it would be the third connector and would be left off on the new radio install.

If they added the speakers into the existing wiring they all would still work and could cause a problem with the mono radio depending upon how they are wired you need the proper impedance.

I'd put an ohm meter on the connectors for the speakers once you determine what you have in the car for connectors and wiring.

 

[salvageV6]

Does the fader on the current radio for front to rear operate properly?

If so you should have 3 connectors and a rear speaker connector you can leave off for the new AM radio swap.