Hello im trying to buy a stereo on ebay, its a concert 1 with the tape player and i need to know weather the different part numbers make any difference, the part number on mine is 4B0 035 186B and the one on ebay is the same apart from he hasnt wrote the b on the end. After looking into it a bit more thereare ones listed with different letters on the end, arevthey all the same. The one im looking at is from an A4 and mine is an A3 will it be exactly the same.