righto so it pretty much just lets you adjust the sound, like a normal cd player now, were these around when there was tape decks and only am radio?? i found a tape deck in one of my wb, its like finding a antique, execpt worthless lol, dunno how you guys used to put up with just am, one of our tractors has am only, killer at harvest spend days listening to old ladies complaining about plants, people loosing there cats and ofcourse the excellant sound quailty