I'm replacing stock Mighty Mites with GFS Crusaders. The stocks only had three wires (red, white, and black) but the new ones have five (red, white, black, and silver). What do I do with the extra wires?
There are somewhat unclear, maybe you can help me with them.

It says green goes to + output and black and sliver go to ground... the only problem is that I want to wire it like the old pickup was and two went to the switch and only one was grounded.