Some '13 with 'aroundview' and BOSE details.. the svc manual now says it's on 'pin 44' (Gray) based on their diagram, but it's still the same location noted as 'pin 28' previously, and it still has the same effect, it confuses the NAV and ungrays the options. What it doesn't do however, is eliminate the 'speed switch' for the aroundview monitor (when moving forward, the cameras, 'switch off' at about 7mph still).. I'm hoping THAT isn't on the canbus (which you'd think they'd just use the speed from the speed wire like the nav/option disable does, but apparently not). 'pin 45' (Green) is the reverse wire and 'pin 25' (Yellow) is the parking brake wire. On the 'Around View' control unit, 'pin 8' is reverse, and there is no speed wire. Again, this is from a 13 SV with 'Around View' and the Bose audio.
Here's from the 13 svc manual.
Pin 44 - Speed
Pin 45 - Reverse
Pin 25 - Parking Brake
Pin 26 - Power
Also, I mentioned this in another thread, but the part # for the blanks for the 2013 is now 68492-3JA0A instead of 68492-AX000. (and looking at various parts sites shows a change in the size.)
Edit: After a bit more probing (and service manual digging).. I can confirm that they send the speed to the AVM (around view monitor) controller over the CANbus.. so there's no way on a 13 with aroundview to have the cameras on above 7mph (even with the speed wire to the AV unit 'disabled' and even the 'parking brake' wire pulled appropriately. The service manual implictly calls it a malfunction:
Symptom: "Selector lever is in a position other than R (reverse) and front, rear, front-side and Birds-Eye views are displayed even as vehicle speed increases."
Cause: "Vehicle speed signal malfunction (CAN communication) between combination meter and around view monitor control unit."