ok, im ordering my stereo setup for my 03 WRX before it comes in so when i get it i can install it all. What I want: single DIN am/fm receiver w/ integrated fold out monitor 4 replacement speakers (1 for each door) trunk mounted 2 10" subs and boxes, or 1 12" sub trunk mountedCD changer dvd player So far i have only ordered a DIN pocket out of a legacy to fill the space of the extra DIN from the factory now, i have a ton of questions because i know very little about car audio. first off, why all the knocking of SONY XPLODE products? to me, theyre a well known name at a reasonable price. second, when it comes to head units, what does the 4x whatever amount of watts mean? and the higher the watts, the better, right? third, ifi got a different brand head unit, different speakers, and different subs, would they all work together fine? Also, is there a way with cheaper aftermarekt heads like this- http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1371619822 and this- http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1372466367 to adjust the settings of the speakers, such as bass and treble? cna i adjust the level of bass on 10" or 12" sony xplode subs? is there an easy way to turn them off also? thanks, im a noob when it comes to car audio and it shows!