I have an 89' Accord LX-i. I was driving down the highway on Sunday in heavy rain and noticed that water all of a sudden started dripping (constant steady drip every second) from under the dashboard to the right side of the glove box (just above the passengers door speaker). When I pulled over to investigate it stopped (but dripped the rest of the way home whenever I was moving, soaking the carpet). I can not see any leak in windsheild or door gasket. I do have a sunroof and have dealt with all but that corner being clogged, but when I parked it in the rain down and to the right it did not drip. Any ideas where it could be coming from? How to test since it only seems to do it when I am driving at speed?