I baught this 2008 aveo5 and the previous owner put a new cd player in it. One the antena wasnt hooked up and two the radio does not turn off when you turn car off also the dash clock wont turn off unless you manualy turn turn cd player off. So i take the cd player out hook the antenna up to it and check all wires and antena works fine now i have radio but it still does not shut off when i turn car off any ideas? Please help thanks