Has anyone tried to use a relay between the Monitor/PSU with the ACC as ON/OFF?
Basically, what I wanna do is be able to power the monitor via my Opus PSU, but I want it to be able to also turn it ON/OFF when I turn/remove the key from the ignition? Has anyone ever tried this? I tried searching to no avail....

I bought this 4-prong relay from Radio Shack - but wanted to see if anyone ever tried it before I did something wrong on my own....