As for the speakers, the interior sizes are 5.25 up front and 4 in the rear. You chould have plently of room if they are those sizes.
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>