More update. As I may have mentioned, I replaced the 4 door speakers with Powerbass 2 ohm speakers. Then when I discovered I also had dash speakers, I realized they were just too loud. I added a 2 ohm 25W resistor in line with the OEM Dash speakers, also corrected the polarity on them. They were both reversed for whatever reason. They are toned down now about the right amount and the corrected polarity totally fixed the stereo imaging. It's all decent now, but as you know the OEM 2017 S Head unit doesn't send out a well eq'd signal, but it's tolerable now.