Hi, so my e46 has very poor radio reception. The previous owner put a pioneer iPod head unit in so I took it out today to check the Ariel was plugged in and it was..but wat I noticed was another a cable not plugged in an no where for it to go..a quick trip to the local Audi shop I was told it is the power for the Ariel antenna and has no place to go on a aftermarket head unit..first off is this correct and secondly is there an adaptor or anything u can get for it to work?