You can try and keep it neat and tidy, it looks very smart, I did to start out, but you also need to remember you need to be able to access and move things from time to time, and tying it all together nice and neat can make this much more difficult.
I eventually just let the wires hang were they can’t be seen, as although it’s not as neat, it makes it easier for maintenance etc. just don’t let it get to tangled!
I have the Radions, 4 of them, and the wires are actually neatly tied to the rear of the tank as they were one of the first things I installed