Has anyone replaced their 4x6 speakers in the doors with something larger? I'd like to find a bracket to hold 5.25" Infinity's.

Yes allthou i havent yet i plan on putting larger speaks up there, do a search of the forum, i think 6.5's have been done with a kustom adapter plate, so 5' shouldnt be a real issue, allthou you may have to make your own mounting devices :thumbsup:

I got 5 1/4 Boston Acoustics. Slight mod to get them to fit. Not that much trouble.