2019 C300 Trunk Fuse box permanent live
I have read numerous guides on how to install a dashcam using the fuse box in the trunk. I have seen this picture before, but it looks like my fuse box is slightly different and rotated. For ACC power, I was planning to use #456 (trunk 12V socket). I cannot figure out what is available for the BAT power. From the picture below, this looks like #451. My fusebox diagram says that this is the rear-heating seats??
this is my fusebox diagram


