Just installed a new jvc kw-nt510hdt in my 07 Saturn Sky last week. It has the monsoon system which is factory amp and factory 8" sub. It's a double din 6.1" touchscreen with volume knob. I have an axxess gmos lan 04 adapter and an axxess steering wheel volume control box which i can't get to work. Anyay, the volume will just randomly go wide open and when i try to turn it down it just keps going back wide open until i press the source(volume knob) buttom then i can turn it down. Called crutchfield, from which i purchased it all from. The radio was discontinued and they are sold out so they cant send me a replacement.... Just my luck. Said they could credit me my radio sale price toward another radio or i could send it to jvc for factory repair under warranty. Anybody have ny idea what the problem may be? Thanks in advance!