Mounted tach without drilling new holes

I installed a tach about a month ago. I didn't want to make any new holes on the original pillar trim. So, I was able to get away with using only one screw that was already there to support the pillar moulding.

By using two thin rubber weatherstripping pieces on the bottom of the plate, it was able to stay firmly in place and not move even with just one screw holding it. I also used heat shrink tubing to keep the wires clean.

Hopefully this helps someone else who is wanting to install a small tach but not wanting to drill any new holes either.