Well I got my nav radio today and it does not work. Supposedly it came off a truck the same year as mine. When I plug it in you can hear like a cd is trying to eject and the fan come on. When I turn the truck key on....nothing. screen doesn't come on radio doesn't work. Is there something I'm doing wrong? I spoke with the seller and he's giving me a refund....just wish this one would.work. it kind of looks like it my have been dropped by the post office since the box was in such bad shape and there is a slight dent on the corner by the antenna plug.