2008 Honda Civic SI
Crutchfield Customer Review (What's this?)
I bought this and you can still have your sub and front tweeters. You just have to wire the front tweters in with you front door speakers and your sub with one of the rear speakers. Know that they will ony have as many watts as you headunit will push. It was very easy to install there is only 2 screws in the armrest, and 3 plastic clip under the dash. the amp is locateded under the drivers seat. If you push the seat all the way forward you can unpluge it very easy. also the you need to remove the shift knob (manual trans) and the rest is clips you just pull up.