Ivylog, I do belong to Monacoers, just thought this and IRV2 might have a broader audience of experience with Intellitech products. Could be wrong, hard to know where to turn sometimes.
A suggestion from an IRV2 member to call Mark Bayus at Intellitech actually put me in touch with another tech named Chris who has seen this before and directed me to the ground bus bar in the engine compartment (you also mentioned grounding). I will be in there today checking and remaking those grounds.
Will post results.
wa8yxm, thanks for the offer to help sort thru the manuals. Let me try these ground points first.