Thanks for the diagram... I just received my GHA 15 and have some questions. I am mounting it on (under) an RV-10 with full Garmin G3X system. It was recommended to put it in the tail next to the yaw servo which is the end of the can bus line. Is there any reason to move the can bus term to the GHA 15? technically it is slightly farther back in the plane than the yaw servo. I could tap the wires for power and can bus at the yaw servo connector. What size CB did you connect to? It recommends 1Amp but my servo circuit is 3 amps. Also has anyone installed the USB- Pigtail? Any thing I should know about programing it into the system.....
You should mount the unit as near in line with the mains as possible, you want the altitude to be based on the mains, not the tail. I installed the USB pigtail just because it was easier to do at the initial install/wiring, than do at a later date if i ever need it. I share no CB's on anything i have installed. Everything is on its own protected circuit with recommended circuit protection rating. i tapped into my roll servo can bus to keep can bus as short as possible.