There are some kind of tape strips - ( sorry don't know the word for that but I'll try to explain):
On the one side they are glued and on the other side they burs. Like on some jackets or briefcases or things like that. Do you know what I mean?

So you stick them on the groundfloor of the sub and then put the sub in you trunk on the carpet and that's it. Easy to remove but it holds in every curve and on accelerating and braking.

Clear?

TeeMcBee
Got my Mk2! # 080000143