Hi all,
(I have posted this on other mercedes forums as well, so if you see it, please ignore.)

I don't post hardly at all but I do read the site. I have searched the internet, other sites, and this site and still have not been able to figure it out. I have a 2002 ml320 and I am installing an AVIC-Z2 navigation unit. I am having problems figuring out how to wire the speakers. Besides taking the doors apart and figuring out where the speaker wires go (to the amp and then back to the radio) I have not been able to figure out which wire is which for the speakers on the car. I need to figure out all of the + and - wires for the speakers.

Anyway, if you look at the attached image, you can kind of figure out what I am talking about. The wiring harness in the dash doesn't look much like any of the pinout diagrams I have seen.
Can someone help me figure out which wires are for the speakers on this unit?

Thank you very much.

[IMG]local://upfiles/5159/4DFB9A6CDBF94DBC88BC1E60143373D6.gif[/IMG]