Cybertruck front door size below windows - size available for signage?

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Looking at magnetic decals for mine - how much room is there? Wondering if I can up the order from 2'x2' to 3'x3'?

I checked already, magnets supposedly work: https://www.cybertruckownersclub.com/forum/threads/will-magnets-stick-to-the-cybertruck.3522/

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Going to put this on the front doors, as big as I can get it:

Then I'm swapping personalized plates "GOTHMOG". Name of the Captian of the Balrogs, Generals of Morgoth's Army back in the First Age (LOTR).