It sounds to me like you are hearing the water drain from the water traps that are built into pretty much all vehicles. This are typically located near the base of the front windshield and along the edges of moon/sun roofs.
If you are not experiencing water in any unusual places, you are probably okay.
Take a glass full of water and pour it along the base of the windshield or around the edges of an open moon/sun roof. Wait just a little bit and if you notice some water dripping from underneath the vehicle then the drains are working properly. If you don't and the water is pooled up at the base of the windshield or along the edges of the moon/sun roof you have a clogged drain.
Bringing back this old thread.....When I had my RL at the dealer the last time, I ask them to check this gurgling sound, and their reply was "This is normal, it does this on ALL Ridgelines". My reply should have been "This is substandard, as I know of no other vehicles that do this".
Has no one else not noticed this sound?
BTW, the sunroof does seem to drain properly, however.
LeXRidge I notice this gurgling for the first time the other day while going through the car wash. I was alarmed at first, but after feeling all around, felt no water, so figured it was alright. I had just closed the moon roof prior to going into the wash so thought maybe I hadn't closed it all the way or something, but that wasn't the case either. Well, it's not just you hearing it! I'll see if it happens again next time.