Yup, and if all else fails, I think there's a fuse in the power distribution center that you could pull, or just unscrew the radio from the wall and unplug it in the back. Reinstall it and then someone could plug it back in and use it down the line.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR