Volume harness for the Acousti-Phonic with a 2-position toggle switch that selects two EQ settings for the acoustic output -- the classic, dark ghost sound, and one with a boost in the mid range (around 2KHz). Lets you connect a 250K or 500K pot (convert tone pot or provide your own pot) to the Acousti-Phonic.
Note: this harness also connects your mag pickup system to the Acousti-phonic.