Reverse signal wire?

[ZeusHavok]

So I've just bought and installed a IDCore Wireless CarPlay kit and it works other than when I put the car into reverse it will switch between the cam and the CarPlay. It does this both wired and wirelessly. What I don't understand is that it's sold as a plug and play kit for the car so surely this would happen with all cars right?

Video of what it does

https://www.youtube.com/shorts/ymg8Fj20K4M

From what I can gather I need to splice into a reverse signal wire. I asked Unique Auto Developments who I bought it from and they said to splice into the reverse light at the back of the car which I'm obviously not going to do.

Is there a reverse signal wire near the centre between the seats where the Radio unit sits? If so does anyone know which wire specifically it is?


Sorry for the word soup, I'm a terrible writer.

Thanks

[Alasdair63]

I had the same problem and had to run a wire through to the boot floor. The reverse light has 3 black wires and you need to
connect into the middle wire from the connector block.

[scm]

From what I can gather I need to splice into a reverse signal wire. I asked Unique Auto Developments who I bought it from and they said to splice into the reverse light at the back of the car which I'm obviously not going to do.

Sorry for the word soup, I'm a terrible writer.

Nothing wrong with your writing that I can see, the only "improvement" I'd suggest is "whom I bought it from", but that's a minor nit.

[ZeusHavok]

I had the same problem and had to run a wire through to the boot floor. The reverse light has 3 black wires and you need to
connect into the middle wire from the connector block.

How involved was it getting the wire from the boot area into the cabin? I assume the left panel in the boot needs to be removed along with the floor? What else from there?
I'm really not keen on doing it but honestly looks like I haven't got a choice :\

Nothing wrong with your writing that I can see, the only "improvement" I'd suggest is "whom I bought it from", but that's a minor nit.

[Stevjh]

I'm also interested in the easiest way to get to the reverse light wire and its exact whereabouts, I'm about to order the UAD kit and was wondering about this too.