99lightning

i pulled my navigation unit out since it wasnt working since battery went dead i disconnected the harness and then i notice behind the unit a single black wire looks like a ground wire, it was broken. it starts in rear of car goes towards the front of the car not sure what its for or what since i cant fit back there. so if anyone has a diagram my first thought it was for navigation.

mertd93

That black wire is most likely the navi antenna, see if it has the blue fakra plug at the end of the cable, it goes to a splitter first and then to the antenna on the top of the rear window. Can you take a better picture of all the wires from the back of the navi drive?

99lightning

i will have to pull it back apart yea that black wire went to the back of car there was like a foam block thing with wires coming out of it that black wire went in back of there roughly. part of same wire that is plugged into back of nav unit? if this is part of antenna wire guess thats y i have no navigation, hope it can be soldered back together

mertd93

Well unplug the blue fakra plug from the navi drive and pull on it to see if that's the one. In that picture I see 2 black wires, one on the left and one on the right.

99lightning

cool thanks i dont think its the one to the nav because i can see the other part of broken wire that goes towards rear seat.