I have installed my Stratus 6 sirius radio in my 2010 GMC sierra. when I direct wired it I fused tapped it into my fuse box under the hood(into the radio fuse). But when i attached it, it immediately turned on. I then moved my tap to the ignition and it now turns on when i of course turn the ignition on. I want it to turn on and off when my radio does. (when it turns off when i open the door even though the key is out) does anyone know which fuse i need to tap?