[djneils98]

i've been told by grom that if i want my grom usb3 to remember preset stations with the DAB add-on it needs a permanent power connection from the hu850 head unit.
i don't remember there being one and the hu850 only works when the ignition is on.
is there a permanent power feed to the headunit (as grom say) so that the hu850 presets don't get lost when the ignition is off?

thanks