You aren't representing here the pot's lugs and they are important.
You should have all this wired as follows:
Neck pickup (you aren't providing enough info):
The braid part must be soldered to the common earth lug of the pickups selector switch, the hot wire (inside) must be soldered to the lower lug of that selector switch.
If it isn't a single braided pickup type but, 2 conductors (usually white and black) + bare wire then:
White to the lower lug of selector and black&bare to the backside of volume pot.
Bridge pickup (nailbomb):
Red wire to upper lug of pickups' selector.
White&Green soldered together and covered with some isolant tape.
Black&bare soldered to the backside of the volume pot (common earth).
Rest of components:
From the middle lug of the selector pickup, throw a jumper to the right lug of volume's pot (looking at the pot with lugs facing you and the rod facing ceil).
Ground the left lug of the volume pot (backside of same pot).
Throw a jumper from the middle lug of volume pot to the middle lug of the tone pot.
One leg of the cap should be soldered to the left lug of the tone pot, the other lug should be soldered to the backside of the tone pot.
From the middle lug of the tone pot, throw a wire to the tip of the jack.
Be sure that any ground wire is soldered also to the backside of the volume pot:
- Jack sleeve
- Bridge claw
- cavity shield (if shielded)
If cavity is shielded, you are done. Otherwise:
- throw a jumper from the earth point of the selector switch to the backside of volume pot.
- throw a jumper from the backside of the tone pot to the backside of volume pot
As someone other already pointed, if after trying it, you find the middle position as sounding thin, nasal, hollow and trebly, both pickups are out-of-phase so, please, just swap red with black in nailbomb
