dwcs2.4 audio board jumper

Jumper 1 left and center connected = audio channel 1: mix of all channels center and right connected = audio channel 1: signal channel 1 Jumper 2 left and center connected = audio channel 2: mix of all channels center and right connected = audio channel 2: signal channel 2 Jumper 3 left and center connected = audio channel 3: mix of all channels center and right connected = audio channel 3: signal channel 3 Jumper 4 left and center connected = audio channel 4: mix of all channels center and right connected = audio channel 4: signal channel 4 Jumper 5, 6 binary code to select the radio channel for the first and the second radio circuit: