Today I bought some fuses and began one by one testing circuits/switches, etc. Everything that could be checked, including the trim works like it's supposed to. Even the Endurance buss and the alternate feed. I turned the radio on but won't key the mike as I don't have an antenna on it yet but it works as advertised so far. I even hooked an Ipod up to the music input and the intercom and the music works. I'm really pleased that all worked. I spent alot of extra time double and triple checking everything. We're really looking forward to going to Sun n Fun later this month.