Ignition switch - bought a small offset screwdriver to remove that upper torx bolt. Removed the ignition switch and squirted it a couple times with CRC contact cleaner and exercised the switch with a flat head screwdriver. I did this 3 times as a temporary band-aid, and it seems to have worked.

New switch is on the way from Autohausaz for $56. Dealer quoted me $170!

Symptoms are common - radio works intermittently. Horn also. Seatbelt warning bong would come on for no good reason. Seatbelt and airbag warning lights on dash intermittent.

The piece that had me stumped was finding the right tool. There are a bunch of DIYs and videos on youtube, but they just show the two torx bolts and then cut to a commercial. When they come back the torx bolts are removed, and there less than an inch clearance on the upper bolt. One video showed them removing parts of the dash to get more clearance, and I'm thinking "that can't be right".

$15 for the mini offset driver at local hardware store.