There are some real problems at times on getting good wiring info on the post 2010 models but I "think" I've pinned it down.
First I found looking at the 12 volt breakers, a breaker labeled sofa! Not being sure of that being the correct item, I went to the backside of that breaker panel and that lists the circuit ID for different breakers.
Click these snips to get a better view!
I found that breaker, when turned around to view the back, shows it as being circuit EEC.
To try to reduce the error rate, looking at this chart of wire ID, it seems to confirm that circuit EEC is for the sofa!
I'm going with that being about 90% sure but if not, it is 12 Volt and after getting any sparks, it will likely be the one sticking out!!
Safe enough to handle but sparks are not a good way to start the day!!