Reading up on how good this audio system in our 2017 Touring is supposed to be. Just can't get over how far it is from even sounding average! What is wrong? I tried putting in some upgraded 6.5 Polk components (6.5 woofer, 1" tweeter) and just did the driver's side first, and noticed no improvement whatsoever. Audio coming from the center speaker is also overly distorted. Noticed especially on talk radio, just bad. Is there anything that can be done? Could the center channel be blown? Anything else possible that can be done to improve things? I've read that messing with the ANC system is a pretty big undertaking. Let me know some of your ideas / trials.