That's what I did in my wave. and I was very very impressed with the results. I would have liked new speakers too, but for the work, the results were great. Probably similar results would be expected in the g5 as wellPursuitGT said:The factory speakers dont need to be replaced.. just add an aftermarket Headunit and sub. you will be all set.
if your car comes stock with the pioneer system and you want more bass and higher overall sound quality buy a good deck and add an after market sub& inPat5190 said:i hav a question 2 anybody who can help me i dont no whether 2 just replace the factory speakers or get actual subs which is gunna sound better and have more bass? snHurler5190