Does anyone have a photo of the GT fuel-gauge "mounting housing and "how" it is attached to the dashboard? Please let me know. Thank you!

All the photos I have of the GT fuel gauge, the cloth is always in the way covering how the gauge was mounted.
I was told that the housing for this fuel gauge is simply a 911 Chrome or Black Painted Muffler Exhaust Tip!
As a matter of fact, I purchased one of these 911 exhaust tips and the GT fuel gauge does fit nicely inside, with no room to spare!