Re: Horn relay
Can you post a picture?
You say "goes down thru the firewall", this sounds like the main power feed to the interior.
This is protected by a 16 ga. fusible link---the horn relay has a threaded stud, this is main 12 volt power. The fusible link is connected here, it is a special wire that blows during overload without causing a fire.
So it goes horn relay stud to fuse link to 12 ga. red wire into the bulkhead connector (the thing that plugs into the firewall to allow power inside .
The red 12 ga. Is spliced to the fusible link and this splice is in the form of a little rubber barrel encasement.
-If you don't stand for something, you'll fall for anything.