So I recently bought an aftermarket radio for my 2013 Hyundai Elantra. It's a touch screen radio when I previously had just a standard one. I swapped out the radio yesterday and it was fairly simple, just plug and go as the radio was made for the car. Everything works perfectly when I am in park, but as soon as I put it in reverse or drive and let off the brake, the volume immediately turns all the way down to off. It will not allow me to listen to anything while driving, I am completely at a loss on how to fix this problem. Any suggestions?