Glad you like it! I can tell you for certain that it's going to kill your cranking battery sooner or later, assuming that's the one you've got it hooked to. I finally installed a toggle switch at my battery so I could turn off the black box while the boat is stored. It draws amps 24/7/365 whether the head unit is on or off. Since I can now turn the black box off, it should quit killing batteries.
Yeah, the switch was another thing that added time to the installation. I bought a 450 watt toggle switch and mounted it right beside my seat, so I won't have to turn it on until I put the trolling motor down. I didn't know that the thing didn't have a switch on it until I got it, so I had to make a trip to town for wire and a switch before I could start. I haven't even installed the rear transducer yet; I hooked it to the fish finder, but the transducer is just sitting on the floor of the boat. I plan to install it tomorrow, but I really don't plan to use it.
I have a group 29 deep cycle for my cranking battery and have all the electronics on it too. I used it and the TM almost continuously for 5 hours today and all 3 batteries were on 12.6 volts when I got home, and that was without running the outboard at all to put any charge back into it. I am not able to fish all day, so I'm hopeful that I can get by without having to add another battery, but I guess I will have to use it longer to know for sure.
7x57, that's a cool picture. I think having a cable steer TM is an advantage for my setup. I can point the livescope in any direction with the foot control and don't have to turn on the TM when I do.