i know this is an old thread, but i just got an avic-x710tb installed. your howto helped (thank you search!) which wires did you move and where to bypass the parking brake? this head unit looks amazing in the car, as you already know!
i also replaced the the stock 8" sub with a sony slimline 10" that rattles the freaking car! had to cut the casing a bit and reseal it, but now it's like getting a back massage!