Re: 59' Pickup Install help
I can't see if this is your first post or not. If it is, welcome to the forum.
59 is a traditional 2-conductor, just positive and ground. The JB is a 'modern' 4-conductor to allow coil splitting, which it sounds like your wiring doesn't support.
Only having 1 volume and 1 tone means they need to be wired as 'master' controls - after the pickup selector switch.
Solder the center wire of the 59 to an appropriate pickup lug of your switch, and connect the outside braided shielding to ground.
For the JB, solder the red and white wires together and tape over them with electrical tape so they can't touch anything else. Then connect the black wire to the other pickup lug of your switch and connect both the green and bare wires to ground.
The 'output' lug of the switch then connects to the outside input lug of the volume control (not the middle lug) and the tone control taps off that same lug the switch is connected to on the volume control. The center output lug of the volume then connects to the guitar jack, and the remaining volume lug connects to ground. (All ground connections need to eventually connect to the ground lug on the guitar jack)
You'll need to refer to wiring diagrams to understand which lug is which on the switches and pots. The main Duncan site has wiring diagrams, but you'll need to look at parts of several drawings since no single drawing will have exactly your wiring as described.
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