Yeah I'm thinking of putting a sub in my car but I don't know how to deal with a original system in my car. Should I replace my original headunit or is there an other way to get the sound inputs to the amplifier.

 

you should post in the audio forum for one...those guys are experts on stereos. also you need a new head unit that has audio outs if you want to do the system right. then you need the amp, sub, sub box, cap...etc. ask the guys in the audio section!

 

Bose or no Bose?