Hello I have just buy´ed and installed a new Blaupunkt BT 410. Everey thing works fine and the blueetooth connection to also OK. But I have one problem. When I turn the radio on , it comes a short message " 1 hour on" . And it is correct - the radio only play 1 hour , and I have to turn on again. Can I adjust the value 1 hour to 4 or more ? or turn this function of ? I have read the manual severals times , and nothing is described about this function. lklo