When I bought my 06 X5 in 09 I was told that there were no adapters available, so I searched and found a BLIZ adapter aroud $150. It is advertised as PLUG AND PLAY not expecting much I plugged it in and IT PLAYED RIGHT AWAY...HOLY S**T. CAME RIGHT UP ON THE MID UNIT AND WORKS 100%
NOW, I'm looking to trade up to an 09...some do not have SIRIUS, will my BITTZ work as a plug in, or what is necessary to get SIRIUS working.

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BMWCCA # 12660
14 GLK 350 M/B (hatefull POS gone)
05 CLK 500 AMG Cabrio
07 530xiT
09 Boxster