I know that lots of places sell the 4x6 ones without speakers, with cheap speakers and with 120-Watt Pioneer as top dog. Although is best to get empty and add good 4x6 yourself.
What's your recommendation on good 4x6?
And more importantly does anyone know if they are available with 6.5" holes for more affordable speakers. I know years ago the Slant Six Board Guy was offering them.