I want to ask a question on this subject. Does it matter what Head unit you have with the stock speaker and amp? I replaced my 2013 one with an aftermarket Boss unit and a pre-made harness from Crutchfield. I don't remember vocals coming from the door speakers in stock form. Does this mean the hpf/lps(not sure which is correct hear) is not working?
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2013 Series 10 FRS #553
RCE T2's, SPC LCAs -4/2.6 camber
JDL 4-2-1 EL, FP and OP, Tuned by Zach@CSG on e85
RR Wilwood Front/Rear Sport BBK, Motul 600 Fluid
ARC-8 17x9 SX2 GTs 245s/Koing 17x8 v730's 225's
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