E420 CD changer installation

I just got hold of a MB CD changer from a 1998 ML and want to install it in a 1994 E420. The car's existing radio has a CD button on it. Can I assume that the trunk has been pre-wired for a CD changer, and if so, where in the trunk does the wiring terminate?
I could not locate it upon checking casually.

Thanks,

Paul

[SCLJA]

First of all the cd changer you have is made by panasonic (from the ml) and is not compatiable with the alpine logic in the 94 e 420. The cable is usually on the drivers side of the car next to the power antenna motor above the LR wheel well behind the side trim panel. It is a 10 pin rectangular black connector. I fyou want a cd changer that works with your car your best bet is to buy a brand new alpine and an adapter cable and you will be done. Let me know if you want one as I do sell them!

Scott@lajollaaudio

[95e320]

What I did to my 95 e320 (should be same as yours).

Buy a m-bus alpine changer ($60 used from ebay)

Buy a cable adaptor ($19 from Crutchfield)

Plug it in and voila!

[dieseldude]

I report the same as above with exception of where I found the cable in my '95: left-side of trunk behind the cowl above the battery.

Bought the adapter and a new alpine unit $200 total.

Regards,
- Ryan