I used these diagrams when I was installing an Infinity Basslink in my 2011 Journey. Non bose/non nav.

You can use these to install a line out put converter or to tap into the harness before any bose processing.

I hope they can help someone else out.
It looks like the 2010 is the same. Not sure about the 2012.

Click for a larger view. Then click again if you need to zoom.
Feel free to share with anyone who may need it.

Base Audio with no reverse cam. *Connector M81*


Base Audio with cam *Connector M201*


Bose audio without navigation *Connector M201*


bose audio with navigation * Connector M208*