OK, I know this belongs in the interior section. But more people look at this section.

My 87 300D has an ugly defroster grid. I started with Windex and it didn't help. Tried denatured alcohol and it worked a little better, but there's still crappy looking spots all over.

Thinking of going to a mild abrasive like Bon Ami. Which does a wonderful job on the exterior glass. Nothing beats it for getting road grime off the windows.

But before I screw this up I was hoping for some input from those who have dealt with this before.

Any thoughts?