Hey nawdeal did it work before and just stop. If so it could be mechanical failure.. You could always check and make sure the little duct under the center console is installed correctly it could have moved or been moved then no air will travel from the rear to the front. Follow the guid for retrofitting bluetooth or install a new bluetooth cradle you will see the little duct.

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E53 06 3.0i

wishlist
Comfort Seats
speckdock 2.5

Mods
Air suspension - wip
skid plate replica - in box
OEM sunroof deflector
OEM bluetooth streaming
navi,dsp,tv retrofit - wip
Low prof roof racks
2 directtv satelite tuners
Grom audio usb2
quarter and back window sunshades
2 10"subs- boxes opposite sides/Alp MRP-M850
rear heated seats retrofit
rear footwell lights retrofit
remote window roll up