I have a Kenwood MP3 deck that came with my 2003 F-150. I noticed that
in recent months that whenever it rains, the deck has a tendency to
black out. I have to remove the faceplate and re-insert it to get the
unit to power up again. Sometimes I have to do this a few times to get
it to turn itself back on. This only appears to happen when it rains,
or if there's heavy fog or dew and usually when I'm driving. I had
some amps connected to it and have taken it back to the audio install
place and have been assured several times that it's not their work
that is the problem. I'm inclined to believe them only because the
defect occurs when the weather is moist. What can possibly be the
problem? Condensation, leakage into the dash area, insulation
problems? The truck is new and so is the deck. This shouldn't be
happening.

Thanks for any input.