Ben & Chung, I would be happy to help with the install, your place or mine just let me know. Chung I take it you have the glovebox out for access to the Onstar for the Bluetooth install? The factory Bluetooth is really a great install once working, I could only imagine how much better it would be with a MFSW, for that I'll have to ask my daughter as her '08 A4 has Nav, Bluetooth & MFSW. At least the Bluetooth install in our cars isn't completely from scratch, we do have the microphone and part of the wiring thanks to the old Onstar.

P.S. I will be out of town on vacation from the 20-29th of May and will be doing a timing belt/waterpump on our Secretaries Beattle probably on the 13~14th of May (I'm a sucker for volunteering but the dealer wanted $1550 + tax and I got her all of the parts for less than $300)