I have a 2002 Buick Rendezvous heres whats goin on: the radio wont work it will say security, I turn my car off but my headlights stay on and this happen randomly you never know when its going to happen ,every time I try to drive this thing now the radio is staying locked my windows won't roll up or down n my hatch release dont work. My dad is very Good with cars he messed with fuses looked thru manual etc. But it is still acting up. He took running light fuse out and they still come on! Buick wants $94hr just to diagnose the problem + whatever it will cost to fix. Has anyone delt with a problem like this?