Mounted the EC2 to the firewall by drilling holes thru the firewall and mounting rubber shock isolator mounts and then bolting the EC2 to those mounts. I originally mounted the shock isolators to high and the Hinge hit the EC2 box when the canopy was closed so I had to move the mounts down about 1/4 inch to clear the hinge when the Canopy is closed. I will need to fill the original Holes I drilled with Flox.