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Rear screen and surround looks like this...
2693

The rear screen doesn't seem to have all the outer material and zip - is it an aftermarket one?

Also - if you're taking your air-con off would you be looking to sell the bits off? There are some...

I have man-cave envy.

I expect the carpet has some sort of anti-stain on it, which is why the dye won't take. Wouldn't it be better to use the existing carpet as a template and put in a brand-new...