Update on the loss of sound. A friend of mine pulled the DSP, it was corroded very badly from the water intrusion. But he was able to clean it up and it still works! He resealed everything so hopefully no more water in it. As to where the water is coming in, the only possibility I could find is maybe a rubber boot in the "gutter" underneath the hatch. We will seal that with some black silicone and see if that works. Thanks again for your help.