Welcome to iRV2.
If your coach is on a Freightliner chassis like my 99 , the small red lit gauges are the F/L standard issue and the bane of of my driving life.
Speedo is virtually unreadable day or night .
1/2 acre dash board and 4" dia. gauge.
I have a 7" GPS display , and rely on it's digital readout for speed.