Radio volume back to zero every time I turn it off

[ZerusPocus]

Hello everyone,

I own an old 330i 2005 and I'm having this issue where the volume of the radio goes back to zero every time I turn the engine off (unless is for a very very short period of time).

Is this normal? Can it be reprogramed to leave the volume at the same level it was before?

I know it's a silly issue, but annoying, as in order to get back to the normal volume it takes a looooot of button pressing

If you can throw some ideas or anything to try out will be highly appreciated.

All the best!