I just installed a double din today (JVC) and have a few questions/issues. I used a Radio pro 4 interface. I have no vehicle information available on the screen, the icon is greyd out. I'm wondering if this interface is just a generic and not capable of showing that info? Not a super big deal as I have an edge tuner. The other question/ issue I have is that the USB in the armrest does not work. The blue light works but when I plug it it I get " usb hub not supported" everything is hooked up properly, I "followed" the directions mostly. Any thoughts? Maybe I need to update the interface?