I held onto mine, but I have all my stock parts still for the most part. If its broken though, I'd say go ahead and toss it. If you really want to put it back to stock when/if you sell it, go to a junkyard and pick up a new stock one. Or i'll sell you my stock 6 disk changer for cheep cheep cheep lol.
Crutchfield rocks!! :P
ROTM June '13, PNW Crew #42, SR #245, Rally Rev #02