Re: I have a problem with speaker choices...no not brand name
You need to get some wiring diagrams of your car. My car had a crazy factory amp sending various singals to various speakers. I upgrade my speakers first, then I bypass the factory amp, when I had money to buy amps and a crossover. Took me some time to compile the equipment. You can purchase speakers here; partsexpress.com or madisound.com.
2 Soundstream RUB4.600
Audax TW025A2 tweeter in the A-Piller.
Peerless 830986 3" Midrange in the sails.
Peerless 830946 SLS 6.5 Midbass in the doors.
Tang Band W69-1042J 6"x9" Subwoofers.
Lanzar Optidrive 10-Channel crossover.
Counterfit Pionner Double Din
2ga welding cable and 12ga speaker wire.