I used the internal speaker before, although if it goes into the dash that might not work so well. In my '87 I have the split front windows which I didn't like at first but then I realized that it left a big empty space in the front of the door that I was able to easily fit my 6"orions and tweeters into. This leaves me with the factory dash speakers to use as external cb speakers if needed. As I am thinking about it now, I will have to check if there is enough room beside the console when the seat is moved forward, I move that seat all the time to put my daughter in the rear child seat. Where are you mounting the antenna? I am just using a magnetic base one for now but was thinking about mounting it to the rear bumper when I make one.