Alpine CHA-S634 6 Disk CD/MP3 Changer
Alpine M-Bus to AiNet Adaptor (KCA-130B)
Soundgate BMW to Alpine Changer Interface (ABMW35V5)

i have a 2003, do i need factory changer bracket?

Where do i get all this stuffs and how much do i expect to pay?
thanks a lot,

you'll need to get a set of brackets from the dealer (like $15) as those shipped with the changer will not fit correctly to the factory rack.
I'd guess you can get all you need for under $400 pretty easily. I bought mine locally from a friend who owns a stereo shop so the best lead on where that I can give is to search around the web (yahoo stores might be a good start).

dang the dealer here in dallas want to charge $115 for installation kit that has the brackets. wonder what else is in there. another dealer want to charge $50. should i get it just for the brackets or can i make the installation without it.thanks

the installation is really simple, especially if you follow mikek_m3's directions on his website. do it yourself!

I actually installed the alpine changer myself using the factory brackets; it isn't totally secured, but it's decent nonetheless.

I hear the tow truck coming.:D