I think that may be it. Are you looking for a changer only, or one with a built in tuner/amp? I have a Nakamichi MB70 laying around with the fm modulator so it can be used with any deck (stock too). It's a single din unit, 6 discs.
The nakamichi MB70...Locally here it sells for $520, I also have the RF-modulator so you can hook it to any deck/stock radio that runs for another $120. So instead of $640, how does $300 shipped sound? I also have a wireless remote, which is another $80 add-on, which I will throw in. The rf-mod and remote are brand new, the changer is used but in excellent condition. Let me know.