Mazda RX-8 Fog light replacement/ condensation?

Replacing the factory fog light bulbs in my RX8 with new bulbs. (one blew, more than likely due to condensation build up in the housing unit)

1- How exactly do I get to the back of those to access the bulbs?

2- How do I remedy the condensation issue that I have in one?

Thanks in advance to any and all help!
 
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