Ok here we go - 2005 4Runner just replaced dead battery (3 days ago) - center plates dead - tested Alt. and it's fine. Issue is when I shut engine off everything shuts down and lights come on for the factory set 30 seconds. I hit the lock button on the key fob and doors lock good to go BEEP sounds. But after a 1 sec delay the radio comes back on and runs the battery down. Any ideas out there?