maybe due to an aluminum head they could not remove them? frankly I am at a loss since I have never had a problem pulling gps out of a car but then all my cars are old beaters...

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'99 S420 - Mommies
'72 280SE 4.5 - looking to breathe life into it
'84 300SD Grey - Sold
'85 300SD Silver - Sold
'78 Ski Nautique