Wiring up reversing camera

[Slam]

So I had my Double Din Head Unit installed today - Kenwood DDX-3021 (thanks to member Bassline Toad) and it's working great

I also bought this Wireless Transmitter so that I can rig up a reversing camera (still not decided which camera to go with yet).

I got the guy fitting the HU to connect up the wireless receiver whist he was at it (just a RCA connection and a +/- power connection), which he did.

But then he said that the HU had a reversing wire that would need connecting up in order to operate the camera/screen, which he didn't do. The HU manual also states "To use a rear view camera, the REVERSE lead connection is required".

But does this just relate to using a designated Kenwood camera??

Before he said this, my understanding was that the wireless transmitter would take it's + & - from the reverse light in the boot and no reverse connection would be required up front which would still enable the camera screen to operate when the reverse gear was selected.

Can anyone shed any light on this for me because I'm now very confused as to whether or not the HU reversing wire need connecting ??

Thanks in advance

[Ownleemee]

I think you need a wire from your reverse light switch at the gearbox to "tell" the Head unit you have selected reerse gear and to go to the correct screen input, I believe the head unit will need configuring as to weather the signal received from the switch is either a + or ground.

[Panic]

You shouldn't have to have a Kenwood camera. The reversing cable should be connected to the gearbox reverse switch. Make sure you get the polarity from the switch round the right way otherwise the stereo will constantly think you're in reverse so best check with a multimeter first

[Slam]

Ok, so it seems that the HU does need connecting to the reverse switch.

Does that mean that the camera/transmitter at the back can be connected to any power source (though I suppose that the reverse light is still the best as it's the only one that'll have power whenever your in reverse)?

[Custom Ice]

transmitter receiver needs power from the ignition feed (it'll flatten your battery if on the permanent power) the HU needs the right feed to trigger, could be 12V could be 0v check the manual. The transmitter should be powered on the camera's loom, i tend to use the reverse light circuit to do this.
You can manually trigger the reverse wire feed to the headunit using a switch you press.

[Slam]

transmitter receiver needs power from the ignition feed (it'll flatten your battery if on the permanent power) the HU needs the right feed to trigger, could be 12V could be 0v check the manual. The transmitter should be powered on the camera's loom, i tend to use the reverse light circuit to do this.

You can manually trigger the reverse wire feed to the headunit using a switch you press.

Thanks for that I'll get a camera ordered and see what I can do.