’05 Dodge Ram 2500 -Backup Wire

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Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=59056
Printed Date: July 13, 2025 at 11:21 PM

Topic: ’05 Dodge Ram 2500 -Backup Wire

Posted By: thetaz01
Subject: ’05 Dodge Ram 2500 -Backup Wire
Date Posted: July 08, 2005 at 8:58 AM

I am trying to finsih up the install of my N1.

and I hopefully thanx to the vss/tach info page, can now find the VSS wire, but I also am having a heck of a time finding the reverse wire

I have a 2005 Dodge Ram 2500 Quad Cab, 5.7
I am trying to avoid having to run a wire back from the reverse lights themselves, i know there has to be a place to pick up the reverse wire somewhere either in the engine compartment, or in the truck under the dash...

Any help would be greatly appreciated.
Thanks

Taz

Replies:

Posted By: thetaz01
Date Posted: July 08, 2005 at 9:02 AM

Also, forgot to put this above, BUT also, can someone tell me what type of Reading i should be getting from the VSS wire..

I belelive the TACH wire, is a varying AC voltage (between 2-6 volts AC), but i would like to find out what the VSS wire is, so i can make sure i have the right line.

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