How much would it cost to get a good system for my car?
Pioneer is a respected brand and very reliable, a good unit at walmart plus speakers (regular car speakers) would run you about 2-300 depending on how many speakers. Subwoofer and enclosures would run you about $80 per set. You also need to see what the rms range is on the box, most boxes will say it gets 1200watts peak, but that's not what you're getting out of it. Look on the box for RMS, and if if doesn't have one, don't get it, its probably crap. Same thing when you are looking for an amp, look for RMS and see if it will run the system you want to put in.