I have a 2001 ford ranger 3.0 and I have no power coming to the a/c compressor. I have already replaced all the fuses and there is still no power to the unit.
Help please??

Have you actually tested for power, or are you assuming that there is no power because it's not turning on?

. Test all underhood and underdash fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post252145

There is an A/C Clutch Relay fuse, in the underhood fuse/relay box.

. Check the A/C Clutch Relay, in the underhood fuse/relay box.

Test for power through the fuses, since corrosion may have formed on the contacts. Remove and clean with steel wool or abrasive cloth, if necessary (one at a time). Similarly, you may want to remove the A/C Clutch Relay and clean the contacts. Lightly coat all contacts with dielectric grease. Underhood fuse/relay boxes on trucks often get really dirty inside, especially when they are used on ranches.