hey guys, i just put two 6.5" jensons in the rear shock towers, and when i turn it up, the dont sound good at all, i noticed there is alot of free space in the towers, should i stuff the towers? im new to car audio, so i really dont know what im talking about. Help would be greatly appreciated.
Jason

 

What are you using to drive the speakers (factory head unit? external amp?) In addition, what sort of speakers do you have up front?