A few months ago I went into a dealership to talk trade-in for my 02 bugeye. The salesman asked me if I still had my stock radio in the car. (You know, the fat 6-CD changer with tape cassette player and no USB port that went kablooey in 2008). I said no, it was long gone. He said that not having the OEM radio can impair the value of the car by "thousands." Has anyone ever heard of this? In any case I didn't do business with this fellow.