I just got an 03 x5 3.0 and am planning on adding an amp/subwoofer set-up.
If possible I would love to keep the "Business CD" stock head unit and i was wondering if anyone knew a good way of adding pre-amp outs/RCA jacks to the existing stereo, as i am trying to avoid an after market switch to keep the asthetic pleasure of the x5 dash
Thanks
Curtchfield sells this interface ....
PAC OEM-2