After replacing a dead battery in my 2005 Z4, although all self installed systems (BMW alarm, V1 and GPS) and the radio worked fine, my Icelink/ipod didn't. My IL is installed via the radio. When I turn the radio to ipod mode I get the following "ice>link plus *ipod*," but no sound. The up and down arrows will momentarily bring up tracks (TR 2, TR3, etc), but no sound. How do I reset the IL/ipod, if that's what needs to be done?