I think it's unlikely that I've missed a step in the install Jim. Aside from girlish hand strength, I am fairly competent when troubleshooting stuff. I'll link the install guide, but essentially the install steps boil down to:
Black to ground Red to BATT on Run Green to Coil - White (optional) to Dimmer
Even the test mode, to just verify the thing works, says to attach to battery + and -, and coil -. I had it connnected as recommened before, but decided it had a bad/noisy ground so ran the black to battery -, but it's still jumpy.
