Remote Mac MAME Cabinet switch mount

My MAME cabinet uses a Mac Mini, however the Mac has an internal power supply so unlike a PC it's tricky to wire up a remote switch without pulling the Mac apart. So instead of dismantling my Mac I bought a small 5V solenoid and mounted in so that the plunger depresses the power switch on the Mac - easy! The solenoid is hooked up to a momentary switch mounted on the outside of the cabinet.

This is the solenoid: https://www.sparkfun.com/products/11015

This thing prints on its side. The 2 lo