I didnt have the bose system in my G but I put in 4 new JBLs and it sounds so much than it did before. But if you really want good sound you should be an after market amp and you'll have better sound that you ever had.
Also I would get 6 1/2" for the front it would sound alot better than the 4x6" thats in there now.
yeah I totally agree with you on the 6.5", my only concern was fitment as well as how much better the stock deck could really do with aftermarket speakers. I don't want to spend more than about 200 bucks...do you know of any better speakers?
i believe the infinity kappas 6.5 are a perfect fit i put in the reference infinitys in to my p11 and they fit perfectly with a sick as seal all around. you just have to check the depth the alpine type r are sick put they need depth if you are going with the 6.5 size i would double check the mounting depth