Mostly finished running the power wires to the back side of the firewall. Made brackets as necessary to secure the wires and keep them clear of sharp metal edges. Made a new L angle stiffener for the backside of the firewall with a cutout section of the flange to give more clearance to the wire. Put a doubler on the angle for added strength where the flange was reduced. Added flexible rubber or plastic edge protectors where exposed metal edges were near the wires.
