First, let me state that I am a complete newbie when it comes to bike DIY stuff. I am not an electrical engineer, and only have basic knowledge of electric circuits learned in school many many years ago. I've only owned a bike for 1 month, and my only DIY experience is limited to fiddling with the battery and fusebox and attempting to remove a couple of fuses.
My bike is a Honda CB400 Revo. I want to add some accessories (camera, voltmeter, gear indicator, USB port, cigarette port, etc), and I don't want to randomly tap it from the fusebox like what some people suggested. I can imagine it will be a big mess of wires over time and that's not good.
I read the proper way is to use a relay and a power distribution block that can power several devices. and add a fuse to ensure it does not overdraw current.
I've googled but the instructions are quite confusing and assumes you already have a good amount of experience working on the bike's circuits, which I don't. Eg, many assume you know how to locate a suitable circuit to tap from, but I have no idea where these are.
So, can someone please kindly give me some pointers (actual info, or links to suitable info for a noob), or recommend a good bike mechanic that install this stuff and is patient enough to explain what he's doing so that I can work on it myself in future. Also, please advise on a good place to buy these components.