The OCD in me wants to replace the "foggy" glass on the cluster panel of my PiP. Is this part number 55403-47040 the outer most part of the cluster panel-the outer glass? I checked ebay and the only ones being sold are the complete assembly of the cluster panel.
It might just need a good cleaning. I had something like that on a couple Gen 2 panels. When I took apart the dash and got the plastic off, it was fine. Turned out that it was the face of the combination meter itself. A little polishing and it was good to go.
Sometimes it's helpful to remember that meter really projects upward through a window in the dash, so if there have ever been sticky LifeSavers rolling around up there or something (eww), a little cleaning might be in order.
And also note the screen at the top (facing you) is acrylic, not glass - so don't use window cleaner on it unless you want it to be foggy