this fm transmitter works ok I filled up an old 2gb sd card with mp3s plugged it in pressed play and away it went. It has one fault and that the lcd dislay is very dim, you cant read it very well in daylight its just about readable at night, but I dont look at it while I'm driving so it isnt a problem.( it is adjustable mine is wound right up)
Volume is ok adjustable between the car and the unit, so its loud enough for me, it also has an equaliser so you can choose between pop, classical, rock etc.
The remote control I havent used much but it seem to work ok.