Thank you Tennman! That was exactly what I had wanted to know. The center vent cannot even be removed unless the airbag is removed, thus trying to fit my hands into the airbox to change the pod is impossible (for me).

I will test the the others as soon as I replace my bad EHA and figure out what exactly is wrong with my central locking system.

Thanks again guys.

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1991 Mercedes 300TE (Current Girlfriend )
1994 Mazda Miata