This diagram seems simple enough, but where do the grounds go? http://www.guitarelectronics.com/product/WDUHH3T1101 In my guitar, out of the whole that the bridge pickup wire comes through is a metal wire/rod thing (kind of like the wires on caps) that I assume might be going to the bridge; it is soldered to the volume pot. So would I send all of the grounds to the volume control, and those indirectly connect to the bridge (which is where I assume that the wire/rod goes), which would ground the instrument? Also, with wiring the pickups, can I run the ground wire for each pickup to the ground part of the switch, and the ground wire from the ground part of the switch that goes to to the volume pot (I assume) with indirectly connect the pickup grounds to the volume pot? It just seems easier to do it that way.