I have a wrangler that didn’t come with a sound bar originally so I got one to put in. I also but in a double din radio and I can figure out how to wire it all up. Does anyone know how to do this
Are you using an adapter to wire the radio to the factory harness?
If so, you should be able to get a used factory sound bar harness from Ebay or similar.
It's also possible the wiring is already there under the roll bar pad.