Is the ignition key the only problem that could cause a battery to drain when the key doesn't stay in the locked position? It has some play in it.
When I am ready to turn the car off, I have to be careful that the key is aligned
with the lock position so nothing else is turned on. I have come 20 or 30
minutes later to find out that I can hear my ac running. The key also does not
go back beyond the lock position in order to hear the radio.
Might not be the key but the ignition switch itself, although you could have other battery draw problems. You won't actually know until you get in there to see what is happening.
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