Proper way to install a 12V driver and switch in a metal 2-gang box

[James L]

If your really want to put the driver with the switch have you considered one of these?

SWITCHEX Driver + Dimmer | Diode LED

LED Driver - SWITCHEX combines an LED dimmer switch and LED power supply into a single integrated unit.

www.diodeled.com

Those are very reasonably priced considering it has the driver and dimmer