What 6x9 Speakers

I’m doing kenwood in the boogie van I’m building. I’m kinda brand loyal.
So. Factory it had 6x9 speakers on 4 corners. I am no stereo expert AT ALL,
But in both the Demon and Barracuda, I use a blue tooth portable speaker. Less weight, never worry about cutting up the car or panels. In the 84 van- holes were all there.
Just my 2cents