Radio readiness issues

[marksi]

Hi guys

I have a 2008 X5 E70 and recently (after some mechanical repair, cough 'turbo' cough) seems to have an issue with the radio.

When the ignition is on or the engine is on, the radio works fine, with the exception that it is 'muted' on entry. However, when I switch the engine off and keep the key in, or just put the key in without starting, the radio does not work !

The blank 'BMW' scree is on and after a couple minutes the battery warning light comes up on the dash.

As you can see on the photo I have an android system installed, that works fine just with the key in.

Today though, after a few days of having the issue, the radio is working fine again, without ignition etc. The problem somehow fixed itself.

Anyone an idea or had a similar issue?