I need wireing help
If you truly want two seperate volumes, you'll have to change the volume pot wiring too. Otherwise when you have both pickups on you will be drawing the volume of both down to ground as you move one pot or the other. Like on a jazz bass, you will switch the "pickup hot" with the "output hot". *Really that means switching the middle lug with the end lug, and leaving the ground where it is. *This way, when you turn the pot down, you are bleeding the pickup to ground, not the combined hot to ground, and they both work independently and can be brought all the way down without killing off the other one.