so i took the tahoe through the car wash the other week and the sunroof wasn't fully closed. anyhow some water and soap had leaked in and now there is a faint ring around my sunroof cover and on a couple of spots on the headliner. I was wondering what you guys would suggest using to get this cleaned up? The headliner seems like it may be more of a delicate fabric and i dont want to use something that would damage it further. TIA