The 2 guys in this thread really did all the work to map it out:
This is my plan as well using the 2012 approach for center console.
Basically using the same wiring plan as this:
The only difference is I already have a relay-controlled switched +12v as my source. I already have relayed power that supplies a large gauge line directly from the battery into the cabin for all other powered items such as HU, amp remote, Sirius tuner, etc. I will use that switched +12v as my "ignition-on".
Otherwise the exact same set-up with the kill switch. This set-up basically cuts power to the prox sensor when the key is in (and R.A.P). Pull the key, open a door and the relay flips allowing power back to the prox sensor. The manual switch then cuts power to that once the key is out if desired. Fairly neat trick.