Gurgling sun roof

I have a 95 Aurora. Whe nit rains, the sun roof makes a gurgling sound until it dries out. It is more prevelent when the sun roof is tipped up. I looked up there and saw two tubes going down toward the windhield pillers. I assume they are drains.

Can anything be done to silence the gurgle?

Make sure the drains are clean

Mine does that too..

What is the best way to clear out the drain lines before this because a "wet carpet" issue inside the car?

That's a good question. I've looked at the drains. From the top they look clear. Would you force compressed air down the drains?

I think this is normal, mine belched one day. I would get worried if I didn't hear it...