I am ordering an AVIC-F700BT for my 2004 Cadillac Escalade. I know I need the accessory to make my steering wheel controls work. Do I need some sort of accessory to enable it to work with my BOSE speakers.

it's a caddy. spend the extra 2 dollars and 50 cents to get the F90BT

you will need a wire harness with amp intergration, the GMOS-04 will also retain your onstar

do you ever want to watch a DVD? do you ever want to have extra monitors hooked up? (headrest, rear flip down, ect)

if so then yo will want to either get the f900bt or the f90bt (the f700bt does not have a DVD player or a video out)