Think i hit a harness in my 2005 sierra

[SirDeadSquirrel]

Drilled a 1/4 inch hole in the firewall above the pedals, now my ac doesn't work on the driver's side, cranks the actuator to heat and I need to know how to get to that harness to repair it?

 

[SirDeadSquirrel]

You must be registered for see images attach

hole location for reference