Hi all. I've recently bought a 1 series m sport with a bmw professional radio with Bluetooth. My radio has stopped working and I took my car to a bmw specialist, they did a diagnostic test and it's definitely the radio. I've since found a second hand radio on eBay with identical model number / part number etc but the seller said his car doesn't have Bluetooth but thinks it might work in mine because everything is identical apart from the serial number. He thinks it's the car that has the Bluetooth and not the radio. Any ideas?