Modular Synth Panels

I have a couple questions regarding the construction of the CGS65 (Tube VCA/Timbrel Gate) module as it relates to the Bridechamber panel.

1) Do I wire Input 2 to the "Audio SN" on the PCB? If not where does Input2 go?
2) For the bias switch, am I supposed to use a DPDT to create a circuit between the two optional pairs on the board?

Thanks,
Jim

ps I'm kind of a newbie as it comes to DIY/EE stuff, so please forgive my ignorance




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