Switch pros 9100 install with SDHQ mount

The battery cable they sent me won’t fit on my positive battery terminal, the bolt is too thick.
Should I just widen the ring with a knife?

 

I used a drill bit to make mine bigger.

 

did you ever take a pic of your final custom tray installation?

 

incredible job and great write up. I wish I had chopped off the bottom of the SDHQ bracket, I used their wire clamps and cut some of the wires in my harness and created a real mess, luckily Toyota fixed me up as good as new.

 

oooof that sucks. I am glad you got it all fixed at least. Thank you, it was a pretty fun install.