I just completed the installation of a Z130bt and the ASWC and have noticed a very annoying problem. I programmed the ASWC to use "presets" for the up and down buttons on the steering wheel. This works fine when in radio mode and mirrors the "trk" buttons on the radio. When I switch modes to BT-A or iPod, the up and down buttons no longer work. I expected it to behave like the trk buttons on the radio and change selections. It's as if in any mode except radio the SWC does not work. The volume and other buttons work fine in all modes. This inconsistencies leads me to believe its a software bug