I have this old BTC that's been through a lot having to take off the pickguard changing the battery every year and other repairs and modifications. I have replaced some of the frayed wires with different colors when needed and honestly, I'm not sure which is which anymore. lol The current diagram on the EMG Website is included below, but the locations seem different. Looking at the actual control, #1 and #5 look like they might be ground. I numbered the locations of where the old wires frayed off with a fine point felt tip pen. Can anyone tell me what #2,#3,#4 are for certain? Thanks!