Quote:
Should I jumper A0, A1, and A2 on the controller board or leave them open?


Leave them open. You only need to jumper them if you want to hook up multiple boards to a single Empeg and then you'll also need component RA1 which you probably don't have. I'm not even sure that Hijack knows about boards at other addresses right now so some minor Hijack changes might be needed also.
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Michael
Ex-owner of stolen empeg #030102741