98 Grand Marquis Factory CD Changer

When you get your interface piece, the factory Ford harness will plug into it, and the adapter will plug into your factory radio.  The adapter will have an input for changer- like the M-bus Alpine 6-disc.  You'll have to run the cable that comes with your Alpine changer to the back of the car (whereever you're installing your changer), and hook it up this way.  This will work, I've done it before, but I don't remember what part number or anything.My ex once told me I have a perfect face for radio.

If it helps any, in my 2001 the harness is on the left hand side behind the trunk lining closest to the tail-lights. There are two black plastic screw caps holding that piece of lining in place.

I have the answers! I found a factory changer and harness and a bit of help from a friendly fellow named Devin at Premier Audio, and the price was quite reasonable. As it turns out, the CD Changer harness plugs into the factory radio unit, and the existing radio harness plugs into the changer harness. In other words, the changer harness ends up between the radio harness and the radio. There never was an existing changer harness in my trunk...which would explain my being unable to find it! The hardest part of the installation was getting all those connectors to fit into the recess in the dash behind the factory radio. I wrestled with it for a good while, and when I least expected it, the unit just popped into place. The rest was a piece of cake. In case anyone needs part numbers, these are what I see on my semi-legible invoice: Changer - 2U6F18C82AAB Harness - XU3F14588CA I don't know whose numbers those are, but they may be useful to anyone attempting to do what I have done. -tm-Don't wanna hear your "boom-boom," just wanna hear my "weeee-yaaah-deedle-dee."