Common ground points

Hi, any help would be greatly appreciated on this matter. I'm looking for common ground points for the inside dome lights and radio on 2012 Tacoma pre-runner w/ v6 4.0l engine and Tow Package. Since I got the truck about 5 weeks ago now, I've had to fix several things and I'm proud to say shes currently running as smooth as a Cadillac. However, the last few things that I've got to fix are these dome lights and the radio! I'm pretty confident that it has something to do with a common ground point, theres a ground not grounded securely. If anybody could point me in the right direction, I'd greatly appreciate it. The fuses are good as well as relay.

 

@Dm93

 

Nothing really in common between the radio and interior lights except the Short Pin in the underhood fuse box, it looks almost like a fuse but is not.

 

Ok I Have seen this previously and wondered what short pin meant. I actually figured it meant empty because thats what mi e is in my panel. Is that what it should be is just empty?

 

**MINE**

 

It's essentially just a jumper that's shaped very similar to a fuse, it should be installed under normal use.
It's primary purpose is to be removed during transport/long term storage to lower parasitic draw on the battery.
I'll grab a pic of mine later if I don't forget.

 

You can toss a 30A fuse in place of the short pin for testing (assuming everything else is stock - 30A is just the closest common size that feeds the three branches after it, 10 + 7.5 + 7.5)