I've read a bunch of threads on this topic, but after picking up my S2k today, don't understand how a rear speaker in the trunk (isn't that where they go??) could possibly be a worthwhile addition! I know that the consensus is that it helps a lot, but am I missing something with the "in the trunk" installation??

 

rear speaker goes to the panel behind your seat...
in trunk is the sub..

 

Thanks for the clarification!