reverse gear signal? (installing a deck)

[deuce07]

okay so next week i should get my new deck in. i noticed in one of the pictures that there is a "reverse gear signal wire". what i was wondering is where should i tap into? the wire doesn't look that long so is there a wire on the harness that has it?

 

[MartinS819]

I'm going to be buying a new deck soon too. Were you able to find the wire? Does anyone have any good info about this, and maybe a good thread on navi/video deck installation?

Thanks,
Martin

 

[Triton8273]

There's no reason to use that wire unless you have a backupcam