Hi everyone, I've got an '09 LS AWD SWB with standard audio. The radio and input/aux buttons stop working intermittently. I push them to try to switch presets/channels or switch to AUX and nothing happens. The volume **** also won't work. I end up having to use the steering wheel controls which work perfectly.

I haven't figured out the pattern that causes this but it seems to stop working much more frequently in the summertime (this started over a year ago) and seems to work more frequently in the winter. As of now it has not worked for several weeks straight.

Anyone experience anything similar or have any suggestions on how to diagnose/fix it? Thanks.