MTA to blast 75-decibel ads in subways as critics blast ‘Fahrenheit 451’-style spin

Sounds like another subway nuisance! Straphangers already struggling to hear service updates over the roar of the subway will soon have to put up with paid commercials blaring through the same speakers — in the latest cash-grab from the flailing agency. The MTA is rolling out a new “Station Audio Advertisements” pilot in June, which…