Brake Light keep blowing out!

[Tymatk]

Hi all

I need help, my brake light keep getting blown. I've clean the contact surface by sanding down, solder where need to be ..... everything works fine every time but when it rains, i get the Brake Light Warning message again.

I have a feeling that there might be a water leak somewhere although when i pull the whole brake light assembly out, everything is dry.

I suspect that it's my rear tail gate thing, where the number plate lights located because a while ago, i removed one of the Number Plate light to fit an Ebay reverse camera, i never finished it because the Camera didn't fit properly, on top of that, my dog chew the camera wires so i left the project half finish there ..... maybe WATER get in from there?

Ps. I have new camera coming over from one of my supplier in the UK.