Good evening dear people I finally fulfilled a car dream a month ago! after I drove almost 4 years vw caddy I got a slk 230 compressor, however, the car still presents me in some areas some problems:P 1. when refueling it hisses and there is a pressure compensation. however, as I could read here this phenomenon is normal. 2. I have installed a standard cd radio and just don’t know what this thing for music files swallows! wave files shows it with error and mp3 I can completely forget. which files does this doofe thing play off so that I can finally enjoy my music? 3. I would like to know if I made a good purchase:P (I find yes) my 230 compressor is built year 98 and has 85000 down. color SILBER. he is stocked with a stitching and has a subtle deeper laying. in addition 19 inches rims (tomason tn1 ) were installed on him with a goodyear eagle f1 maturation. also he has xenonsc heinwerfer got missed because I have the cleaning system. ( ka if the standard was:P) the interior is kept completely in black and everything works without problems (seat heating-climate seat adjustments etc.) would please me over numerous answers. ps. I know here there is a search function but I find in the praised 16 million contributions never what I am looking for:P tobi