Radar detector surge?

I was installing my wiring harness on my road bike for a tpx 2.0 radar detector when a protective cap fell off the aux connection and the connection touched the positive battery terminal anyone know if it can be fixed?

The metal parts of the machine are connected to the negative pole, which belongs to the iron, the positive and negative poles will be connected to a short circuit, so the positive pole of the battery has a protective cover, and the negative pole is not.