the rear deck is there we just wrapped it in black vinyl and opened the whole for air to travel through. The backseat goes back in we just were to anxious to put it together before testing. This has been going on for a few months now. The ports are 4" aero we just have to make some modifications to insure they are well enough for the space of each box. was hoping for a 6" aero in each but wont work with this situation.