When I try to hook up 3v3 to the GC+ I think its the pms lite that starts making a buzzing sound when I try to boot. Has anybody ever had issues with this before? and are there any tips?
Send some pictures of all of your wiring. I'd also check your resistance between 3v3 and gnd on the GC+ when it's not attached to anything else, just to see if it's shorting out the line.