Judging by his setup (and I am not meaning this as an insult in anyway), I'd say he's more into the flash and boom, not necessarily SQ.Are you just trying to show off as much stereo equipment as you can or do you actually want some sound quality...
couldn't you make a new rear deck out of a thicker material and have it covered?bleh.. the rear deck sounds like shyt.... too much flexing and you lose all teh sound quality... you could put a sturdier material in there... i was thinking maybe building boxes for teh corners of teh back window, to jsut wedge in there... be nice looking.