Reversing Light Siren
 

2.8 litre KJ

Can anyone advise on the wiring colours for the reversing lights - I have wired a siren into the light cavity but I dont think I have picked up the earth correctly. Everytime I brake I speed up the right indicator and I suspect the globe is earthing through the reverse light connection and siren. I woill of course use a multimetre to try to fing the correct colour for the earht wire. Pleasenadvise.

Pretty sure you will fix the problem, but did you know you can get reverse light bulbs really cheap that have a built in siren/beeper.

https://www.ebay.com.au/itm/2X-12V-L...gAAOSwDEtaL-Gd

Reverse feed is brown/light green in 02, ground is black/white.

But, wires changed during the years. In 06 the reverse lamp feed is white/grey and ground is black.

If yours isn't one of those years it may be different again.