Radio changing station by its's own

[Quickurt]

Originally Posted by Jager

Urban Legend,
Check the GAL setting on your system:

I don't know if that's completely true, Jager.
All modern radios are transistors of one type or another.
Electronics companies have all spent fortunes on super cooled components because cold semi-conductors are more efficient then warm ones.
You have a certain volume level set on your radio and turn it off warm. When you turn the car back on at a later time, the semi-conductors are now cooler and, theoretically anyway, more efficient (powerful).
There is also the fact of probabaly having road and or top down background noise and having your ears accustomed to the volume level before shutting down, then having quiet and low volume background when starting it back up.
Both factors may well be relevant.