The harness is the one in the instructions on this board but it indeed seems to be the full factory job as it includes the connection to the Amp as well as the nav.

Is the wiring on a Nav equiped vehicle very different? I do get the feeling I will need to compare this closely to the loom already in the car but it does not seem impossible. Any idea where the plug goes that is near the radio plug and are the thin wires indeed speaker wires?

At any rate I plan to strip the car during the next week or so to see whether this fits or not. Luckily I can live without it for a few days easily.

Thx for responding, this seems to be a topic very few have dealt with thus far.