I'll try to get pics this weekend, but look under helm. You will probably see a couple different plugs with nothing connected. I just went through and found one that was already connected to one of my switches. It was an odd shaped plug. I found a matching mate plug on another wire, cut it off, and capped off those wires. Soldered that plug to my Simrad wires, hooked it up, and wala, fishfinder works. It's now powered up off my radio accessory switch. I didn't use the yellow memory wire as we have a master cutoff so it's not necessary. This took maybe 1/2 hour. Now modifying the dash opening to fit the Simrad .... well that was a little longer and messier.