I want to run my heated grips and GPS charger from switched circuits on my Concours and I don't want a bunch of wires connected to the battery. So, if I understand this correctly, I can run a wire to a relay from the battery, and then to whatever fuse box I use, and then connect my accessories to the fused circuits. Do I have that correct? I know what relays do but I've never understood how to choose which relay capacity is appropriate and which terminals to use. A little tutoring would be appreciated.