Yes its model specific, I presently have an alpine 6 disc, but it keeps showing up an error on the radio display. I've been told that this is a direct plug in replacement that will work off of the radio controls. They usually go for about $30.00 on EBay therefore I though I was going to be getting a great deal at $9.95. It'* an ALPINE CHM-S630 6 DISC CD SHUTTLE CHANGER. I'm in no hurry, I'm sure another great deal will come along, I just with I could fix the alpine one that'* in there now. Thanks for the reply Jim.