| Hey Dave,
Although I had my speakers professionaly installed, The 6.5 JLs fit perfectly with the stock grills and sound too awesome. There is a company that makes speaker adapters that will work. I think it is Metra or something similar, Circuit City carries the line and would know the correct name. Anyway, they make a 1" spacer I was going to use with the Infinity speakers I bought before I discovered JL Audio. No modifications are necessary. | 
