Can no find where blue wire from the back goes to

Thee is a standard wiring connection for stylus cartridges. Looking at the rear of the cartridge, there are four connections. With the stylus point down, starting at the top left and moving clockwise:-
White wire - Left channel out (10 o'clock)
Red wire - Right channel out (2 o'clock)
Green wire - Right channel ground (4 o'clock)
Blue wire- Left channel ground (8 o'clock)

Alternately the connection arrangement could be in a vertical line with alternate pins staggered. In this arrangement looking from top to bottom it will be :-
White wire - Left channel out ( Top left)
Red wire - Right channel out (Second right)
Blue wire- Left channel ground (Third left)
Green wire - Right channel ground (Fourth right)

I hope this helps

One wire goes to a leg on the pot,the other to ground.

If you can upload photos of the wire and the board of the pignose maybe I can help.

Thanks

Horn is red +, black -, mid is white +, blue-, lows are yellow+, blue-. If you look at the crossover board, you'll see the treminals are labeled what goes to where.

you must at least name the piece of equipment and where the wire is located...

Peavey color indicates that Blue is Negative And Yellow Is Positive, so Yellow goes to + Speaker Terminal.

NEVER trust colors... with an ohmmeter you can tell which is the common lead by testing... find the lead that has continuity to EITHER switch independently... It is PROBABLY the blue one... this will be the "sleeve" of the plug. The schematic documentation is so bad the jack wiring cannot be decipered as to which contact is the tip and the ring. HOWEVER once you find the common of the switches and connect it to the sleeve you have only two choices for the other wires so just try them.

You can also take the back off the pedal to find which color goes to BOTH the switches... connect that one to the sleeve. Try the other two wires for proper operation before final soldering.

There are a couple thumbnail sketches of the diagram at:

http://music-electronics-forum.com/t8790/

They are down about 3 an 6 of the blogs.

There should be two wires connected. One goes to the jack tip while the other goes to ground. One lug on the jack is connected to the part touching the sleeve on your cable while the other will contact you cable's tip. There is another wire in there somewhere.

Here's a shot of the connector, mated to the motherboard.