2 quick things
Yes, when I am on 90.1HD3 next Seek + will be the next Analog Station
Whethe I seek up or down, with a no so good signal I will go from 90.1 to 106.7 and see no data changing. I will keep playing with it though.. if the HD tuner cable has issues still that would explain it.
Treble and Bass, maybe those just don’t work.. they are not options on the Tuner controller ( neither is the volume either though)
Also I think the Volume control as you control it is linear.. make the slide Log if you can, I think that will work better. then add a spot for a default start volume.. each system might be different