Radio install help 66cuda

Good grief If all you are installing is a plain old "radio" just use the radio connector

Should be a connector up under the dash, either "L" or "T" shaped with one orange wire and one other (red?) wire. If you cannot find them, get into the fuse box.

The diagrams at MyMopar shows the radio fuse is at one end of the fuse panel. Your instrument (lamp) fuse at the other end