. Which BT/TCU module do you have? The units in the earlier e53s (like 2004 model year) didn't actually have BT capability even though the documents in the car stated that it did.

See the information highlighted in yellow below. You may want to go to the part database (like bmwfans.info)...then input your VIN and look up the BMW 11 digit part number for the current BT module (aka "TCU" - telematics control module). If you click on the blue "i" next to the current part number...it will give you information about older/compatible part nbrs that will work if you're shopping for a used one.

Good luck.

__________________
Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.

• 2015 f06 650ix GC (Moonstone exterior/Cohiba brown Merino Leather interior)
• 2014 f15 X5 50i (Space Gray exterior/Mocha Nappa Leather interior)