Do i need a wiring diagram to find a short in my f150

https://faceitsalon.com/1989-ford-f150-starter-solenoid-wiring-diagram-database/

https://automotorpad.com/ford/1136348-ford-f150-starter-solenoid-wiring-diagram.html

https://annawiringdiagram.com/wp-content/uploads/2019/02/wiring-diagram-1989-ford-f150-data-wiring-diagram-site-ford-f150-starter-solenoid-wiring-diagram.jpg

It is here

Need color code for radio wiring - Ford F150 Forum

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Here too

https://www.scosche.com/media/guides/fd1441.pdf

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Ford offered 3 engines for the F150 in 05. Did you want us to guess which one you have?

Use a test lite on negative side of coil, engine cranking, the lite should pulse?
It appears the vehicle has electronic ignition, There is a separate ignition module. In the wiring diagram, I can't guarantee the wire colors. The older my wirings diagrams are, it seems, the less accurate they are. I hope it is readable, If no spark, I'd check the ignition system, Check fuses--fusible links--battery connections.

JE radio information at the links.
1994 f150 reg cab stereo wiring diagram F150online Forums
1994 Ford F150 Truck Car Stereo Wiring Diagram ModifiedLife com
Topic 1994 Ford F150 wiring diagram Topic Closed
https://ca.answers.yahoo.com/question/index?qid=20120103100354AA44WL1

here is a diagram, if u can't see it go to the link below.
http://autorepair.about.com/library/firing_orders/bl-fo-9225.htm

If you have trailer lights make sure you don't have a short in the connector or harness. You obviously have a short somewhere after the fuse. Try unlpugging each running light. to see if its in the light connecter. also check the side markers

you can get it online or go too auto zone and look it up in the manual

here is diagram.

i need the color codes wires