Disabling the audio headphone port?

I broke a headphone jack off in the audio output port and I can't get it out (even with the toothpick / super glue trick). I'd like to disable headphone detection for a Macbook Pro os 10.8.4 so that I can play audio on the internal speakers. With older versions of Mac OS X, there was an
~/Library/Preferences/com.apple.audio.AudioMIDISetup.plist one could delete, but in 10.8.4 that file isn't there (hidden files visible). Is there a similar solution for 10.8.4?

I'm not aware of any such kluge but other around here probably are.
I have, however, fixed this problem with a tiny fish hook straightened out and used it to pierce the inner core of the headphone jack. The barb prevents it slipping out upon withdrawal.

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    =====================
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    Options 
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