Adding Alpine CD Changer to 1996 Passport

Does anyone know if there is an adapter from the 1996 receiver (Fujitsu Ten) to the Alpine CHM-S630 CD changer? I have not found anything out there.

If there are no adapters, does anyone have the original CD changer? If so, does it hook to the receiver by the 14-pin rectangular connector, or the 13 pin round connector?

Finally, does anyone know the pin-out configuration of the receiver or the CD changer (I know, a long-shot...)?

Thanks all!