‘21 Pete 389 no cruise or engine brake

Both worked until Sunday. Sunday I took the factory installed CB out and installed mine. The plug that is hard wired in would not fit on my CB so I put a plug that would. In the process two wires touched and arched briefly. The cruise shut off, the info center with GPS & radio reset, and I lost power to the CB.
The cruise indicator comes on when I turn the switch on, but the cruise does not set. The engine brake indicator light comes on and the lines that indicate what stage it’s set in…

‘21 Pete 389 no cruise or engine brake