For sale: used Sub thump 2010-2015 Camaro Plug & Play RCA Output T-Harness For Factory Boston Amp V3.0
Worked great for me when I added an all in one 10" sub (not included) -
https://www.amazon.com/Rockford-Fosg.../dp/B007AQ2W2Q to fill out the bottom end.
Sold my Camaro and no longer need.
$45 shipped via Priority Mail.