Posts by Cman

I figured it out. I read through other threads that the reverse switch outputs a negative 12v signal. That needs to be positive 12v in order for the stereo to interpret it correctly. To accomplish that buy a relay switch from your autoparts store. Splice into the white wire transmission reverse switch. Then splice into the acc wire (12v when the ignition is on). That one splice needs to be split again via another splice or pig tail [you could make a jumper wire as well on the relay]. The white wire will go into 86 or 85 and one of the 12v splices will go into the opposite side. The other 12v will go into 87. Finally the 30 is the output wire that goes to the purple reverse camera wire on the back of the stereo. You're essentially creating a switch via a relay that changes -12v to +12v. Look for how to reverse polarity using a relay for more detailed information.

I watched the slingmods install video for their harness. I assume I need to take wires from the reverse switch going to the tranny and pass them through a relay to turn the negative signal into a positive signal. I'm still open to advice and if someone knows how to wire to the relay it would be greatly appreciated. In the video they tapped the red ignition wire for the +12v. I'll keep researching and report back on my findings to help the nest person out.

I just tried the black wire and it did not work either.

thanks EjFord I've read plenty of posts from you.

Hello,

I'm virtually done with an aftermarket stereo install. The camera button on the Kenwood stereo works fine. I spliced into the white wire on the polaris reverse switch and ran that to the stereo. The camera only comes on when going into neutral from reverse. Do I need to use the black wire on the trigger? I could also put both splices into the single switch wire on the stereo. I know slingmods sells a kit for this but I already bought an ssv amp kit that already had a harness for the radio (minus backup camera).

I appreciate any help. This is the last step before I can put everything back together. If it is too complicated I'm ok just using the camera button on the stereo.

I have attached a pic of the harness. I spliced into the white wire. The other wire is black.