Now that we have solved the missing connector issue on the 2020 86's so that the door speakers work, we know the limitations of this Harmon system. Its quality is poor and it is incompatible with the woofer AMP in the trunk.
- Has anyone tried replacing the stock 2020 headunit?
- If so? With what?
- What installation issues did you have?
- Can one use the stock amplifier?
- Do you have to rewire the USB port?
TIA - Doug