And the end...the original poster has gotten fed up, Wuzzat, please keep to posting answers to the questions relevant to the original question, And Petey we know you could care less what folks think about you, but thanks for at least answering the original question.
And to add my 2 cents, there is no issue with an access panel being unvented under the tub. The only reason you may have needed a vent was for a steam system in the showers. Removable panels are allowed for electrical outlets with a dedicated cuircut.
Made in the