Radio/Aux turns off and shows "ALARM"

[Linas.P]

Recently my radio started playing some kind of game. When I drive past the Thames-link tunnel it stops what ever is playing radio/aux/disk and displays the message "ALARM". I have non-Sat-Nav unit without screen. That only happens in the Thames-link tunnel.

User manual states that this means emergency message is being broadcasted , similar to TA. However, it seems there are no ways to turn it off thought. Does anyone have seen this message before? I believe either my radio going mad or somebody is really trying to send distress signal in that tunnel (for a ~week, so might stop soon though :D).

[ahmedali44]

Ur absolutely right it  only happens when there is an emergency in tunnel as I use tunnel on a regular basis, I get that 2 in my taxi radio,every time I go through it says alarm, always been accident or break down.u can turn it off by pressing any button. i think it's police signal telling u to slow down.hope this clears it up 

[Linas.P]

On 01/03/2016 at 0:46 AM, ahmedali44 said:

Ur absolutely right it  only happens when there is an emergency in tunnel as I use tunnel on a regular basis, I get that 2 in my taxi radio,every time I go through it says alarm, always been accident or break down.u can turn it off by pressing any button. i think it's police signal telling u to slow down.hope this clears it up 

Thanks, that must be it, but I have not seen any issue. Maybe they turned it one and forgotten to turn-off. Yes it stops as soon as you press any button - at first I got worried as I though it is something related with my own car's alarm e.g. maybe key Battery is low and car is going to immobilise the engine soon :D