I have a 2012 tsx with technology package. I wanna put an aftermarket subwoofer and bass amp. Im thinking about putting a jl w3v3 with a 500/1 or 250/1. Will i still be able to control my subwoofer level and stuff through the stock navi hu? I will bring my car to a professional shop to do all this.

 

Yes, you will just take the speaker level signal off the factory sub..
Jeff

 

okay, thinking about adding a jl w6v2 10 with 500/1.