Help 2.3 4x4 ford ranger
 

I have power from the starter relay to the fuse box on the fender wall but nothing on the truck has power

Welcome to the forum

Always good to include the Year of the Ranger
1989?

The starter relay post with the Positive battery cable has all the 12volt wires connected to it
There will be a few Fusible Links on that post in 1989

A fusible link is like an in line fuse, its a shorter wire that connects battery voltage to vehicle devices
The look like this: https://m.roadkillcustoms.com/wp-con...k-1024x504.jpg
Or this: https://m.media-amazon.com/images/I/...1000_QL80_.jpg

They come in different colors and AMP ratings
On a 1989 Ranger there is a Yellow wire that runs from that starter relay post to the ignition switch under steering column, that wire powers everything on with Key ON
That yellow wire will have a fusible link between it and the starter relay post
It "might" be an Orange fusible link

Starter relay(battery positive post)--(fusible link)--//-----Yellow wire-----------------------------------------------------------------------ignition switch

Fusible links are "slow blow" fuses but they can blow

Yes is a 89 and will this fuse link be attached to the starter relay then to a wire running to the ingition switch

Yes, exactly