I have successfully tricked a Porshe factory radio into accepting an Panasonic dvd audio input through its cd changer rca's before with an simple A/V switch.

So now I'd like to attempt the something similair in a Mercedes with a Panasonic HU. This HU has NO --- AUX ins. Buying another HU is not an option, but thanks for thinkin anyways!

Problem is that he has no CD changer thus the Panasonic HU sees no CD changer source yet. I will simply plug my DVD audio RCA's into the CD RCA's on the HU but I need to make a "dummy data cable DIN" plug where the CD changer is usually plugged in. So it would trick the HU into seeing a CD changer.

I know someone out there has done this before...I just need to see the pin out diagram for the HU. I realized that there have been I think 2 different ones in the past 5 or so years

ie. which pin is 12v which is looped etc..

Thanks in advance...