Autosleeper Symbol 2013 . USB problems.

[mike 1954]

Hi
I have a Auto Sleeper Symbol 2013 . Peugeot Boxer.
Has anyone found a solution to the problem that with the ignition switch off you can not use the USB port in the storage compartment under the radio. When I plug my iPhone into the USB port I can listen to music etc. but only with ignition on. or when driving . With ignition off I can only use the FM radio function. Not Media.
It says Source Not Found.
I’ve noticed there is another control board under the radio that the usb connects to .
Any help would be gratefully appreciated.
Thanks
Mike

 

[Clivefog]

Do you have habitation 12v sockets? I f so you can get a USB outlet fitted there. The ignition fed one is isolated so as to avoid the time when you leave something plugged in and find a flat engine battery, can be wire to be constant live if you so wish.