Mine has two yellow squares, the "do not wash or oil" and "special instructions" . The correct special instructions is available from classic industries, #MD892. I'm not sure which do not wash or oil is correct.
I'm 200 miles away from my car, so I can't get you pics or dimensions, or even which is where.
Nice thing about non-original, you can put anything you want on your lid.
Agree with both hunt2elk and dadsbee on decal placement for a Dodge. It is behind the back wing nut from the factory. However, the OP is asking about a Plymouth which MIGHT be different than the Dodge?