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? Also.......My car does have power antenna...US7

Thank you guys

Michael

 

[GNRick]

Kirban is always trying to sell some kind of a code book to his inner circle crowd. You might try emailing him with your code questions. Sorry, can't help much with your other questions. Good luck!

 

[turbofish38]

Wiring is the same for all radios. 3 connectors on the back of the radio. Black is power. White is front speakers and Blue is rear speakers. Front speakers were standard even with the radio(UL5) delete option. Rear speakers were an option with the U63 AM radio. There are only two rear speaker codes. The U66 extended range and UW4 which is the same speaker used on the Concert Sound 2 option. U63 is mono. Does one side sound stronger than the other?

 

[BUICKGNX]

Yes....one side (passenger) front side on dash sounds normal rather than drivers side front...it is pretty weak. How can i fix this? My car did not come with rear speakers. Maybe a dealer installed item. U66....IS THIS THE CODE?

Thanks

Michael