I think 655 has the tuner in the hatch for 2007-2009 and the tuner enabled in the head unit for 10-13.

Pre-wiring was available in the 07-09 so you could add the tuner box in the hatch. 2010+ all have the tuner in the head unit which you can activate via FSC code. Either way, any tuner will need to also be activated with Sirius. Give them a call and tell then your VIN. Or tune to SAT and see if a tuner code comes up on the screen.

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2009 35d, 2006 325i & 330i