i have an 05 lux, no speakers in my rear doors but i did buy it from a dealer and an old guy owned it from new haha. Since i've owned it i've fitted an after market single din dash conversion kit from USA (replaces stacker and air con unit), have a single din clarion screen in there, i have focal splits up front, focal 6x9's in the parcel, kicker L7 sub, focal solid 4 amp running the splits and 6x9's, focal 750.1 mono block for the sub. All doors are sound deadened with dynamat, including resonance bats in the front doors. Parcel tray has 2 layers of sound deadening and also some of the boot is deadened too. I figure why buy top end gear and not sound deaden it, like buying a ferrari and using shell servo oil in it haha. You get what i mean though. Next purchase will be a graphic equaliser as the clarion screen is very very limited in tuning potential. Still sounds amazing but certain things i want to be able to fiddle with a bit better.