Hi all. My wifes trike 2008 GW1800 radio worked fine until about a month ago. The radio,AUX, etc. work through the external speakers but not through the helmet speakers. I'd like to get at the connectors at the radio to see if they have somehow worked loose. But I don't know how to get the cover off the radio. I have always done my own work on my other bikes but this GoldWing plastic has me puzzled. Does anyone on here have any suggestions or can point me to a site for help removing the plastic? Or should I just breakdown and get the service manual. Thanks. Ted