6 X 9 install in a quad cab (not a supercrew)
i have a 1999 F-150 quad cab (not a supercrew) in my rear door panels i have 5 x 7's (why) and i would like to know if i can replace these with 6 x 9's. I have relized a little mod (cutting the hole bigger) will be needeed, but will i run into any other trouble...


