:doh: D'oh!, did not spot that.
Set up wise I would go for a good set of componets up front and a set of 6x9 in the rear quarter panels where the back seats are all run off a 4 chanel amp. The 6x9's would be used for rear fill and as they are in the middle of the car won't be drowned out by the sub (s). A 12" sub in a sealed box in the boot powered by a dedicated amp.
As Mark has already said buy quality gear and don't fill your car full of Kenwood crap. You pay for what you get ;-)
I've got a 5.2v Alpine head unit up front with Cerwin Vega mids and tweeters powered by a Hi Fonic's (Orginal gear and not the cheap copy stuff!) amp. In the back i don't any any other speakers as my exhaust noise keeps me happy
But if i was to run rear speakers I would have some Focal 6x9s and a JL Audio 12W5 sub powered by a Phoneix Gold amp 8)
Mark, i know the lad with the Pug and Keenwood gear. It sounds cr4p but Christ it's b4st4rd loud1 :shock: