I have a 2012 Buick LaCrosse that I installed an aftermarket amp and kept the factory HU. I ran my remote wire to the fuse box under the steering wheel, and connected it to the radio fuse. Everything works fine except that the amp stays on even when the car is cut off and the keys are out. I’ve tried every other fuse on that fuse box, and the amp stays on no matter what. Any other options y’all might know about?