Hey all new here I have a 2006 mercedes ml350 I'm currently trying to install a headunt and all the wires are messed up I can't find the power,ign and ground wires for the life of me it is the fiber optics amp version I've tested all wires with a voltage meter and none seem to produce volts there is no harness just the wires any help would be sooooo appreciated I'm beside myself trying to figure this out
