i just did a sound system in my r about two weeks and im very happy with it .my system consist of ioneer flip out tv with a dvd player 6 inch crystal speakers all the way around with cyrstal tweeters up front one twelve inch crystal sub with a 700 watt 4channel amp. the box is custom fitted in the rear and it is very light also does not way the car down at all .the system all in all sounds awesome its loud and very clear i couldn't be happier!!!