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

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The Mercedes Specialists Since 1986