I just took delivery on a CPO 2009 328iX Wagon. Equipped with satellite prep and the "Professional" radio. no iDrive. the dealer tells me the satellite receiver is on constrained sales meaning only for warranty so I'm shopping the used market. I've found a long list of replacement receiver part #'s when looking at oemparts.com. along with the part number is a list of several service advisories or "EBA" numbers. 1. Does anyone have experience with fitting a satellite receiver? Is it likely that multiple part #'s or receivers work equally well with my car? 2. Can anyone tell me where the receiver gets mounted in the wagon? I know it's the trunk on the sedan. Is it the driver's side compartment in back of the wagon? 3. Assuming I can install the receiver myself, am I going to be obligated to take the car to the dealer for programming to get the receiver to be recognized? Any other suggestions from anyone with experience dealing with a similar scenario?