Hi guys, I have a 2013 EXL/nav and I am trying to get info on the stock stereo. Anyone know what the power output is on this unit? From past posts, I have been lead to believe that it is made by Alpine. I am in the process of adding some Polk component speakers to the front and some coax to the rear doors. Yes I have disconnected the ANC. Just curious if the stock stereo will have enough power or if I will end up installing a line out converter and amp to power the doors.