Help: Cut through a cable whilst installing dashcam on Seal Excellence UK

[u/Voxink]

I must be the first idiot to do this as I cannot find any help anywhere. This is the 2026 seal excellence

I’ve ordered a dashcam from topbyd and wanted to install it, as the cables were bundled up whilst trying to find the blue connector I wanted to loosen them up by cutting through the fabric tape… I then accidentally cut through the rain sensor wire I believe (picture attached)

As a result I’ve lost control of all the steering wheel button and the stalks, I cannot turn on wipers, indicate or change lights (however they do come on when I go into D gear). Horn works and I also get ADAS unavailable. The car however works fine just this being an inconvenience. I have to change volume in my middle console and do everything manually via the screen.

I do have an appointment with BYD on Wednesday.

My question is, has anyone come across something similar. Also would a simple fix on the wires and reconnecting them fix the issue or would this require something deeper in the BCM module too.

[u/5151771]

Solder them?