xplosion79 says: "For some reason my z series doesn't display any text for my presets."
I have found this on the x930 and x940 I have in two of my cars and they also do not display the text for the presets.
I was never sure why on my x930, but when I got my x940 for my second car I found out why.
The x940 showed the text until I received my HD Tuner. Once the HD tuner was installed, the text no longer showed.
It has something to do with the HD tuner.
Very Annoying!
Presets along the bottom of the screen with Station numbers shown not (P CH 1).
I had the Alpine W-INA910, and
