I did the install a few day ago. I popped out the panel where the GBS goes without removing the pocket. The wire for the GBS is attached to the pop out panel.
- "Now move to the passenger seat and use the nylon wedge to remove the pocket panel under the knock-outs under the climate control knobs. This was the hardest part because the fit here is tight, but I found that getting the tool into the top and popping those 2 clips first worked well. There are 2 wire connections that you will remove."
As to installing the silver box (alarm ecu) I was able to install it with out removing the cross member.
- The cross member is attached with 4 10 mm bolts. Once you remove all 4 you will see that the upper 2 had hook tabs backing them up so you will need to gently push up to remove the member. The 2 lower wire harnesses you removed from the lower dash panel are attached to the cross member so just swing it out toward the accelerator. The factory instructions recommend removing the hood latch from the lower dash panel, but if you wrap it in a cloth it will slide down under the door (DON'T CLOSE THE DOOR ON IT).
I found the instructions from the Sparks site pretty good. I too need to stop by a dealer to get the alarm to be recognized by the main ecu. Good luck to others who add this.