Thanks man
Its an exhaust fan, only one in there so far, I have 2 pretty large holes just above the motherboard along the back wall to try and allow some air to get into the thing. Maybe I will see about getting another fan for an intake to get some more air flowing through the area.
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2005 Ford F350 crew cab long bed, 6.0L diesel, 4x4
HU: 10.4" touch screen computer linked to Alpine 9887
Front Stage: Polk Audio SR6500 Active
Front Amp: Sundown 100x4
Sub: Stereo Integrity Magnum 12" V4
Sub Amp: Sundown 1500d