I lost key to my Monte Carlo SS 2001 we broke in it cause I though I locked then in the car they were not there and the alarm went off so we unplugged the battery had a new key made plugged battery back up the alarm did not go off when we hooked the battery back up and now I have no dash lights or blinkers what should I do I forgot to mention I had someone take the factory stereo out to put different one in could that be a problem they cut wires to short not stuff is not working and still don't have a radio in yet