4.5 PERFECT FM wiskin | 22/03/2012 | See all wiskin's reviews (2) I only use the FM bit, not the AUX. but one the FM it is perfect! it sounds like a CD! it doesnt drop out of signal.i have read other reviews saying about everytime you take it out of the car it would loose the best signal, and you would have to re-tune it! but it is not the case for me! I would deffently reccomend this!