after that its all go. i mounted my factory headunit underneath the reardeck (dash) on the drivers side next to the 6x9. i also mounted two 1" surface mount Kicker ND13 tweeters on the front winsheild posts almost facing the glass (sound bounces off the glass) and two JL Audio XR653 6.5" component sets in the front doors, i put 2 JL Audio VR690-CX 6x9's in the rear deck, powered by a Coustic 150X2, i have a Kenwood headunit, and 2 12" Kicker Competitions powered by a Kicker 1225XI (125X2) about 380 watts running to the subs, right now im hovering around 140db SPL! WOOOHOO!
Check out the pics here!