WASN'T the ignition switch. Literally was fine and acting normal on the way home after replacement, just went out to the car again and it's got power to the accessories again without a key in. Going crazy at this point.
Thanks for the reply!
I'm saying they already put the new JBL amp in (the corrected updated version) and I'm still getting the same issue, including power to the accessories. Radio guy is putting aftermarket unit back in so I can prove that there's still a big parasitic draw.
I'm being...