[Chebawookie]

I'm enjoying the sound mod and though I couldn't get the switcher to work(for me) using the jonesoft GME worked just fine, however I'm not hearing interior engine sounds in any P-51 cockpit is this a known bug or am I the only one who has this? Anyone know how to fix it? It seems to have come about after I installed the alt. Merlin sounds although I changed back it still is all quiet in the cockpit.