E53 In Car Entertainment - Mystery Object!!

[Stray Cat]

Hi Guys
Can anyone identify this box? It's located directly below the CD changer unit in my (European) X5, on the left side in the boot/trunk.
I will be fitting a new Android head unit in due course and I want to remove anything thats no longer needed as the new unit has it all; SatNav, DVD, Bluetooth etc but I don't want to remove anything that is still needed.
Thanks

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[X5Sport]

Telematics Control Unit (TCU) I think. Also contains the Bluetooth transceiver (but not antenna) and connects cellular systems to the shark fin antenna. Boosts signals from phones connected to the car systems via the armrest adapter. If you can find the part number (7 or 11 digits on the module label) you can put it into something like RealOEM and that will confirm. Some models included a telematics function for data link to BMW and to allow position data to be sent to the emergency services in the event of a crash - and I think needed an active subscription from memory.

[Greydog]

X5 Sport is spot on, either Bluetooth/Telematics or in car Phone unit (is there a phone in the armrest?)

I put a Dynavin unit in my original X5 4.4 and sold the BMW stuff from the boot on the well known auction site. I managed to get back just about all my costs that way.

[Raj]

As above, bluetooth module. Had to pull mine out to get the code required to paid the phone.