Silicone sealant around the seams. Condensation in the headlights is due to trapped moisture. If you do the bake your headlight trick and then re-seal them with some good sealant you should be good to go.
-Matt
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2016 4Runner Trail Edition | 2000 Honda S2000 | 1976 Honda CB360T | 1979 Suzuki GS750 | 1978 Suzuki GS1000 Restomod
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