I have a B4C and I want to keep it as factory looking as possible. I would like to set up a sound system that looks factory. Is there a company that can add bluetooth to the factory radio with out altering the looks of it? Can I add jacks to the radio for an amp? One of the previous owners added some Polk audio speakers to the front don't know about the rear speakers. Are there any suggestions or opinions for speakers that fit the factory locations? Where is the best place to hide an amp? I don't want to cut drill or alter anything to do this if it's possible. I believe the radio in my car is the base cassette radio but I don't know if that's what it originally came with. Does anyone have an idea what the RPO's are for the base radio or the next level up? My car doesn't have the base interior and am not sure if it is option group one or two.

 

UM6 would be the basic cassette deck, and UX1 would be the EQ cassette deck.

 

I bought a Retro Newport for my 1988 Firebird. It looks very similar to the original AM/FM Cassette. I am impressed by it. The ***** and buttons are all in the same location as the stock unit and it is a full DIN 1.5 so it fills the opening without an ugly reducer plate.