hey, I'm in exactly the same situation as you.
check out this thread for more details

http://www.xoutpost.com/electronics/...fit-query.html

there are some part numbers there for the retrofit loom you need

if your car has the monitor you will at least have the white six pin sitting on the top left corner of the wheel arch. if you are lucky it will also have the black six pin which connects to the speed sensor and reverse light for a fully plug & play solution.

if you dont have the black 6 pin (like me) you will need to tap 2 wires

i will be hoping to complete mine over the weekend and will let you know the outcome