Trying to keep it simple here. I've got a 2019 FLHX and like to upgrade the speakers in the fairing. I MAY or MAY NOT upgrade the amp later.
In the meantime, I am just looking to do a simple speaker swap and am looking for recommendations. Thanks.

 

Just adding speakers wont do it and will probably sound worse as most aftermarket speakers are 4 ohm and the HD speakers are 2 ohm. You really need an amp to make your setup sound good. Save your hard earned money and do it right the first time.