2013~2016 Anyone know where the hands free mic is connected on a Bose system?

Greetings! Day 3 of install... I've replaced bose amp and speakers with aftermarket, retaining head unit. Im at the final stage, but need to know if the hands free mic for phone is wired to deck or bose amp. THANK YOU!
 
Thanks RL, after a call to Crutchfield, I confirmed that. Install finally completed, Bose is now a horrible four letter word in my book...🙃
 
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