Weird glitchy radio....



I'm based in Australia and have a 2016 C63s Edition 1. Random question, when listening to the radio I noticed that no matter what station I am on every so often the radio station "jumps/skips". It doesnt change channel/station but skips like when a cd is playing and it hads a scratch. It normally skips back 1/3 of a song or even just 10secs worth of lyrics or commentary. Is this normal for digital radio? Seems so odd. Also, Digital radio always cuts out completely when driving through tunnels or bad service areas so I wondered is there a way to set the system to not use digital channels because I find that when I select a non-digital channel to avoid this after a min or so it then changes it to the digitial version. So annoying.
Boring question I know as not related to horsepower but hey, sometimes I just want to hear radio tunes! LOL
TIA
Also, next time you drive past a bus, the radio cuts out. I wonder why? The bus must use some sort of cutout system.



