On 14 Mar 2007 20:10:41 -0700, "Kirk"
wrote:

what if the liner isn't pure white? Mine is sort of off-white color.
Will the bleach cause discoloration, or just remove the black stuff?

You could spray the whole thing with bleach and hope it lightens up
evenly.

I've developed a technique for removing mildew from hats but it won't
work on your headliner. I throw the hat in the pool and let it float
around for a few days. Works like a charm but it does lighten up the
color.