Stereo has no power

hey folks-

need some ideas. my boat was in the shop for about 2 1/2 months this summer and when I got it back on friday, my stereo is dead...no power at all to the head unit.

I have a Liquid Trends system and have dual batteries w/ a perko. I'm not sure how it's wired, but I believe I am getting power from both batteries, because I can turn the blower on when with the perko switched to 1 and to 2.

My thought is that it might be a fuse, but I have no idea where to begin looking.

Just for reference I have a sony xplod HU, two amps, 12 in sub 6 tower speakers and 4 interior speakers.

Any thoughts or suggestions?

I would assume that you have a breaker in line with your main power wire if Liquid Trends did the system. Follow the main power off of the battery and see if the breaker is flipped.