Decided to give the J-Tone a go (too many bells and whistles on the J-Retro for me...). Just a question about wiring - I’m pairing up with some Aguilar 4J-HC pickups which have 3 wires each - white, grey and black, and yellow, grey and black.
Am I right in assuming white/yellow is the hot signal, grey the cold and black needs to go to ground?