I previously had a 73sv Chirp on the console and a 73cv Chirp on the bow, with a PS22 on the trolling motor. I bought the Livescope system, which means upgrading to Echomap Plus units. I wanted them to share data, so I ended up getting two 93sv units, the network port expander box and the Livescope system (Merry Christmas to me). My boat already had an accessory lead on the bow that I used to power the 73cv and the PS22. I'm pretty sure the wires are 18 awg. Now I have to power the 93sv, Livescope black box and network expander box all on the bow. The instructions for Livescope call for wiring directly to the battery with the 7.5 amp fuse 8 inches from the battery. It calls for 10 awg if adding a 15' extension. Does the black box really draw that many amps? Would I be ok powering all three things from my existing leads or am I going to have to run more wiring up to the bow. Any suggestions and comments are appreciated.