i have the base radio in my car. coupla questions:

1)are the speakers for the stock system and the infinity system the same?
2)is wiring for the infinity system present in a non infinity system car?
3) anyone compare the stock system to the upgraded infinity system..is it much better?

 

1. no
2. no, just basic wiring.
3. Infinity sounds great but buy aftermarket before spending the $$$ on a oem Infinity system.

 

I was hoping to add the factory molded rear sub to my Evo but I didn't realize the SSL wiring was different from a non SSL

Thanks for the info!