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      07-18-2011, 06:52 AM   #6
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Drives: 2012 E92 M3, 2014 528i
Join Date: Apr 2005
Location: Ft Lauderdale, Florida

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2004 M3  [0.00]
Originally Posted by alpina527 View Post
Thanks Technic. I already have Assist, so maybe it will be best to go for Telematics.

Is there much difference in the fitting process for each type? The BMW pdf shows it fitting in the dash, but I thought it replaced the unit on the trunk floor.
The Combox dash install is when there is no Telematics (TCU) unit in your car at all. The Combox trunk install is when there is a TCU in the car:

Will I need to run any cables up the car and does the armrest area need to be pulled apart?
You need to get the CAN wires to the Combox harness. I use the iDrive Quadralock CAN wires for that. I do not remove any armrest parts unless a Video port is to be installed and then I only replace the existing OEM USB port with an OEM USB/Video composite port.
-2015 F30 320i, Imperial/Oyster, 8AT: August 2014 ED
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: September 2011 ED
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
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