Hey guys I posted awhile back when KSWTRBUG did a group buy on the scorpio alarm install.
I have a top gun undertail as well so I understand trunk space.
I have a pcII, an A.T.R.E., the alarm, CO2 airshifter, neon & strobe controlers, yellow box, toolkit, socketset, goggles, gloves and other trinkets.
The PC will mount vertically along the left side of the trunk wall in the NOOK. The yellow box will mount to the left positive battery terminal perfectly. Room to wrap it in foam too. The CO2 bottle fits in the trunk or on the right side between the subframe and the plastics. The A.T.R.E. fits on the little round raised front part of the trunk nearest the driver seat on the angle. The neon/strobe contollers fit in the corners on the verticle wall. The tool kit fits on the opposite side of the co2 bottle. The goggles etc fit in the "Trunk" or back tail section area. There is still room for something else. The alarm fits on the exterior of the drivers side side wall of the trunk liner on the other side of the PC2 which the back side of the nook.
ICE