before I drop $300
Ok, I have a 2004 X3 with BMW assist, and a build date of 5/2004. Per BMW my X3 does not come with BT. I took my SAV apart and, I do have the BT antenna, etc... The only problem is I have TSU 84.11 6945940. Do I try to use navcoder to see it I can get it to work or, just buy a new TSU.
Thanks
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