Busch

Is the 4x6 Kenwood the higher end one you are referring to?

I have a 69 Mach 1 that I’m planning on taking a 2000 mile trip with. The car currently has the original AM radio and a single speaker in the dash. I was thinking I will add door speakers like the original Mach 1’s with that option had. I was also planning on getting the radio upgraded with Aurora parts. Anybody have suggestions for what speakers fit the doors and sound the best? Dash speaker suggestions welcome too