You can tap the line out converter at the amps to the factory subs .... however ther 2016 has the ANC which need to be disable or you will get terrible feed back. I don't know the steps for the 2016 370z .... but I had to do it with my 2016 maxima when installing the aftermarket amp and subs.... my 2015 nismo 370z was before the added ANC
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