My 2003 Sebring convertable recently has gotten water in the well where the top folds back.

take a shop-vac and get it all out of there~ use a thirsty paper towel for the rest~

are you asking about seals.....sadly JCWhitney has an inexpensive array of self-adhesive seals for you~

Thanks! I am asking about source. Where is the water coming from and why?

Back window top has separated common on sebring

Along the bottom of glass

While top is up, have someone run a hose on the top around window and where top meets body while you observe from the inside with a flashlight. If your top is original, the seal integrity and stitching are probably done as Mr Mcmanis stated. If the top has been replaced, confirm excess fabric has been trimmed over the drip trough where the fasteners clamp the bottom edgeof top in place. Water can sometimes drip over the trough if fabric fans toward the well and is too long. A top shop would be the best to consult about this.