Hi all,

Thought I would post up some findings from my fitting of an aftermarket rear parking sensor kit and in particular, the reversing wire that needs to be connected to the unit.

Firstly, most of my searching for help on this resulted in the fact that the circuits in the rear light cluster were all permanently positive and the selection of reverse made that circuit negative, meaning the installation of a relay to change it back again to enable the reversing sensor unit to operate.

Having taken this as gospel, I purchased the required relay, wiring, etc and went to fit it.

As it turned out, had I bothered to check myself previously, I could have save myself the trouble as once tested with a multimeter, the selection of reverse already gives a positive outcome!

The photos attached show the wire in question for my 1996 3.2 XJ6 X300. It is marked with a piece of insulation tape but is the wire between the solid black and blue.

It is a case of simply connecting into this wire and the required 'firing up' takes place on selecting reverse gear without any extras.



I hope this helps anyone who needs to find this wire for anything that needs power from targeting the reverse selection.