Just popped open the back of the AV unit and took a photo of the connector. It looks like the attached photos. I'm not sure yet if I have to insert any pins.
https://drive.google.com/open?id=0B72qQeKA6G0IZXc2SFYyRG1pMlFtNW4zeG1BdThlN3NSOFZv
Anyone have any ideas?
Thanks! I'm comparing your photo of the M21 to what I have. I guess it looks like I don't have the cables from AV?
This is my left connector (M21)
https://drive.google.com/open?id=0B72qQeKA6G0IVGo0R1l1b3JfUG83YU4zbDI2WnNzWmVRRXlV
And this is the one on the right (assuming this is B3?)...
I'm about to attempt this on my 2013 SV.
I want to double-check something. When I look at the driver-side kick panel, I see two connectors side by side. I assume the one on the left is B23 and the one to the right is M21?