I dont recommend taking the battery out its a PITA to take out the battery lock on the bottom is a biatch as well...
if you take the battery lock you cant lock the car and if you do you cant open it... well you can but it will be a bitch just so much hassle.
oh if you wait too long if you take the battery out and tries to put it back more than 4 hours it will reset your settings not just the clock...
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