I have a 2002 1500 series Avalanche that's loaded with features, including a sunroof. I have had a leak in the cabin bothering me for sometime but cannot locate the source. My carpet is wet in front and back. I had a cracked windshield replaced about a year ago which I hoped would stop the problem. It did not. I have inspected the sunroof and see no indication of moisture in the housing.

Is there any history of cabin leaks that I might look into?

Thanks- Bill