Wiring help for Music Man Stingray Guitar

Wiring help for Music Man Stingray Guitar

Hello! I got a Stingray guitar (6 string guitar) last year and was thinking about swapping some pickups and possibly adding a miniswitch for some alternate pickup options. When I took a look at the current electronics I was surprised to find the PC Board that connects the electronics. I want to keep it in tact and I’ve been able to discern what all the current connections are based on following them to their source. But any idea what the extra lugs do? Incase I need anything extra to complete what I wanted. Or if no one knows where I might find such an answer. Thanks in advance
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