Went with StarkeyProducts kit...simple plug and play with no splicing or tapping of wires on my '21. The setup is different from '22+ since Ford did some re-wiring.
On my 13 Raptor I used a kit from Amazon that had an RGB controller and mounted under the bed rails. Took a bit to set it up, but very cool being able to change the colors. Turns on and off with a magnetic switch in the bed.