My door panels looked absolutely crappy. I was gonna re-fabric them but discovered another much easier, cheaper, and faster approach.

Take door panel off, and take it completely apart (handles, swithces, etc.).

Remove door fabric and if you have it, the "carpet" covering the lower door "pockets".

Use lacquer thinner to clean door pieces (EXCEPT WINDOW SWITCHES, AND LOCK SWITCH, THEY ARE BLACK AND WILL LOOK FADED IF YOU CLEAN THEM WITH THE LACQER THINNER). Rub nice and hard to remove all ground in dirt. Mine were tan and I could never get them clean before, the lacquer thinner will remove the topmost surface of the plastic, leaving them new looking and ready for a thourough soaking in your choice of plastic dressing (Armor All etc). This is especially true of the handle on the Teg just rearward of the electric window switches.

Remove the adhesive residue from the carpet on the lower door pockets with the lacquer thinner, it will melt easily without any damage to the plastic. Wipe clean until smooth.

Where the fabric was on the door is a plastic surface identical to the rest of the door. It will have a residue of adhesive on it as well. This will only come off by scrubbing with lacquer thinner and a 3M WHITE SCRUBBER PAD (not green which is too aggressive). This takes some patience.

Remove the speaker grills and peel off the fabric covering. No residue this time, just a cool looking pattern.

Liberally coat everything in plastic dressing, and allow to penetrate.

Re-assemble door panel.

When you are done you should have a door that looks brand new! It will clean very easily, and not get damaged like fabrics (also 100% waterproof).

Sorry no pics.