Anybody knows how to find reverse wire at the dashboard?

[YLW DRM2]

I am hooking up rear view camera to the HU (I installed Pioneer Avic900BT) and I was wondering if any of you know how I can locate reverse wire at the Dashboard? There are bunch of wires right behind Stereo, anybody knows if reverse wire hiding somewhere there?
I know another possibility is to run reverse wire all the way from the back of the car, but I would like to avoid it. In any case if that will be my only option is it easy to get to the reverse wire at the rear of the car?

 

[Tom Sessions]

you can pick up a 12v feed from the backup lamp switich on the side of the trans.The white with lite green tracer is the backup lamp out put wire. The other wire Pink and white is 12v key on feed. The backup light switich is on the passenger side of the trans. You can pickup the wire a little easier on the drivers side of the tunnel at the 6 way connector. You can get to it without pulling the bellypan down.

 

[YLW DRM2]

Thank you Tom, I will try that, though I hoped not go under the car for this wire .

 

[Darbgnik]

Thank you Tom, I will try that, though I hoped not go under the car for this wire .

I have heard that there is a reverse wire in the dash, but not knowing where it was when I installed my camera, I just taped a wire onto the camera wire(as you have to run that back there anyway) and tapped into the reverse light at the socket. In my vert I found this way easy.

Sorry, not the help you needed.

 

[Venomiss]

Tom gets Kudos for this one.

 

[YLW DRM2]

I have heard that there is a reverse wire in the dash, but not knowing where it was when I installed my camera, I just taped a wire onto the camera wire(as you have to run that back there anyway) and tapped into the reverse light at the socket. In my vert I found this way easy.

Sorry, not the help you needed.

That is exactly what I did yesterday.
One question to you, how did you run the Video cable? The connector of the video cable is rather thick and bulky to fit through some of the tight holes that I ran power cable through.

 

[ACRBruce]

A little off-topic but still related question... Does anyone know how I can tap into the speed pulse wire under the dash?