Originally Posted by munichman
i'm sure this has been posted before but i dont have the ski compartment. I have heard that to avoid rattling the trunk they should be pointing to the front of the car.
if you don't have the ski hole you should cut one yourself. If you are going to spend your time and money installing a sub, you should do it right and port the back seat. Most e30s had the perforations for the ski hole which made it easy to simply punch it out. Since yours didn't come like that, you should cut a hole out yourself.
Point the subs to the rear of the car unless you only have one and it is mounted in the ski hole.