Upgraded the sound system before it was painted to a single Kenwood head unti with 6 Rocksford fosgate speakers,, a 10 inch punch sub woofer in a custom trunk floor box housing, and a 400 watt alpine 5 channel amplifier. The sound is awesome, Nothing like cruising down the road with the feeling your getting slugged in the back with the bass, Tweeters sound nice and crisp too.