From November 1 to April 1, I will be storing my 1994 SL320 in an unheated garage with a concrete floor. Should I store the vehicle:

1- With the top folded down and hard top in place; or
With top up?

2- Trickle charge battery in place and connected up; or
Remove battery and trickle charge?

3- Cover vehicle (does this trap moister inside vehicle); or
Leave vehicle uncovered?

Any other recommendations other than gasoline stabilizer?

Thanks in advance.

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Thanks
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1994 SL320