07 460 with 124k, nothing, absolutely no mix, spray, cleaning pads, special sauce solution, will clean the inside of the rear window

it looks like the last 13 years have baked into that window every foul smell crap that leaked from the inside of the car since new
it is almost like a fog and bad when the sun is behind me

took it to supposedly specialty detailers with no luck, I either live with it or what, pay big bucks to replace the window?

anyone successfully dealt with this?

 

Tape off the package shelf, trim, and ceiling and try applying lacquer thinner (or another solvent) to a test section away from the defroster grid. If that doesn't cut it, you're likely stuck. I don't know what solvent would do to the defroster grid, but be careful around it!

 

Have you tried a razor blade or very fine steel wool?

 

Spray Nine cleaner has cut through everything I've tried it on so far -
I'm using it to clean grease and tar off my bike today.