Just purchased a 1989 FJ62 and battery keeps draining but I think its a new battery. Before I purchase new one, I'm trying to determine if something is "on" that is draining the battery. Reason I think this is because when I turn off truck and take key out of ignition, and then open drivers side door, I hear beeping, as if headlights or something else is on even though for the life of me everthing appears to be off. My questions is this - do all FJ62s beep when drivers side door is open - perhaps a door ajar warming - or does it only beep if something is "on" as a warning beep? I doubt it is a door ajar warning since the passanger side door does not beep, but at any rate I thought I would ask before I start troubleshoting and or replace with another battery. Thank you!