Why does the climate/radio panel not work? It was flooded & only blows hot air.

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Right after a big storm, we noticed our Sun Roof was leaking when we saw water all over the driver's side seat. It happened a few times, so we tried to cover it, plug it, etc. The other night we had a terrible storm. I went out the next morning to sit my coffee in the cup holder, but it had over an inch of water. The CD compartment was full of water & suddenly the fan was on full blast with hot air. We can't turn it off, nothing on the panel will work, i.e. air, radio, etc. We hoped it would dry out, but it still doesn't work & in 100 degree weather, you don't want a 90 degree heater blowing full blast on you. HELP!!!