5 Control Wiring Harness. 2-Volume, 2-Tone, 1-Mixer and 1- 3-Way Selector Switch. Used on most guitar models built to vintage specs with 250K volume and 500k in all other positions.

Some companies making aftermarket wiring assemblies have adopted a different layout and connected the tone capacitors to the volume controls instead of the selector switch. By doing this they have introduced a flaw which is that when a pickup is switched out of circuit, both tone controls are still connected and either will affect the connected pickup especially noticable when both volume controls are set to maximum and a muddy sound will be the result.