Some Equipment...
Both to the battery and fuse both at the battery.
Some Amateur equipment comes with fused hot (Power) AND ground leads. They recommend that it is done in the event something in the vehicle electrical system goes haywire.
As to your question about
"where" to ground, you should experiment as you are installing your radio. The reason I say that is (
and there are disagreements on this, but I've lived it) sometimes you need to find the SHORTEST grounding spot, and sometimes it is OK to go clear to the battery.
Try it both ways with the truck running, the headlights ON, wipers ON, heater on HIGH....
See if you get any engine or alternator noise
either way. If you do, get noise one way and not the other,
THAT would be the best way to run your ground....
I had a Chevy Blazer that drove me crazy with a two-way mobile and alt whine. We finally shortened the ground (removed it from the battert & placed it on the frame "right at" the radio and that took care of the problem of the whine in the RX...)
Steve/KB8FAR :lol: