Here's a couple pictures of the final install. I ran all wiring to the rear of the car and used the trunk fuse block to source my power needs. Doing this was surprisingly simple - tucked cabling along the headliner, then A pillar, then foot well. Removed the rocker panel "Camaro" trim and followed the existing wiring loom to the rear seat. There is then an opening to the trunk area where I then followed another loom to the fuse block under the trunk carpet.
I placed the GPS sensor om the passenger side dash. It is there temporarily until I can test and make sure it receives an acceptable signal. If it does, I'll remove the double sided tape and place it in the corner by the A pillar - virtually hidden.
The rear camera was purchased separately, as I wanted one that didn't have a bracket. Camera wire was easily routed beside the license plate by removing the license plate light fixture. (in my case on the right side). No drilling required. Camera also mounted using quality 3M DS tape.
The Power-Magic Pro (battery rundown protection) was mounted using double sided tape, under the carpet in the storage area. This way, I have easy access to it, to turn it on & off as needed.
I used plastic wire loom and then covered the loom in fabric wrap, which gives it a OEM look. Power was pulled using fuse 'add-a-circuit' things
System requires a constant 12v and a switched 12v (either accessory or ignition), plus a ground of course.
I took my time and dicked around with the wiring for quite a while getting it the way I wanted it, but this entire install could easily be done in an afternoon and a case of beer.
Let me know if you have any questions.