How to access/replace the cabin air filter?... Got a musty smell at startup on 2009 Volkswagen Jetta

Smell only emits at AC or fan start.

Asked by for the 2009 Volkswagen Jetta
1 answer 1 comment
LOOK UNDE THE P/S OF DASH SHOULD BE A LITTLE TRAP DOOR. ALSO SPRAY SOME LYSOL INTO YOUR FRESH AIR INTAKE UNDER HOOD AND THAT WILL HELP BACTERIA ISSUES
Thanks, guys! That oughta do it!