Headlight switch , is it the cause? or the curse?

Replaced dimmer connector. Same issue with hi beams, hissing and heat on the wires. Even disconnected the high beam at the bulk head engine side and still get arcing hissing sound. I wonder the wire red is piggy backed on the diagram one feeds dimmer switch with other feeding the hi beam indicator light on the dash. Since dash doesnt work i think maybe something erong. Getting closer.