also just to be funny $20 for the tcu shipped out of a 2004 x5
Bluetooth antena + fakra from junk yard $30 i know i got ripped off on this but its ok, i got the wolf siren for 30 so total of 60$ is why i did it. Going into an e39 m5 02 i needed the 54 pin connector got it from audi for 6.7$ bux

So OEM Bluetooth/Assist/CDMA Phone I got it all installed for $ 56.7

Plus I ordered the navcoder for .27 bux i know its funny and the cable / usb for $35 shipped.

So I did spend over 40 hours on this project research/parts getting/custom cable but for a total of $91.97 + alot of headache I believe that my m5 is too good for me now, its sophisticated lol