Voodoo Lab

So I'm putting together my MIDI rig with my GCX, GCP, and control switcher with my 6505+ and I got everything working perfectly other than any pedals that I put into the effects loops. It looks like this 1 - TS-9 overdrive 2 - ISP Noise Gate I send the cable to the amp on 2's "out" and I can switch ...

Well I don't have the handbook as I bought it used but I'm sure I can find it online. I was under the impression that in order to switch channels on a 6505+ you needed a special cable because the 6505+ doesn't have a midi input. You need a 7 pin din cable for the footswitch and I think you need a sp...

So I've finally made the jump and decided to get a midi system and went with the GCX and GCP. However I know I need some sort of special cable or something to connect it to my 6505+ head. Where do I go about getting one? As a side note, how does the GCX work with effects loops? I need to run some pe...