Hello, I too have been suffering with the inferior sound on my 2018 Niro. This car replaced a 2004 Mitsu Outlander with a stock stereo system that was the best I ever had and it was the middle model, not the best model. I do believe that a speaker upgrade would satisfy me, but I don't know how to go about it. I would expect it to be a plug and play situation where door panels are removed and new speakers put in the place of the old and voilá! Will crutchfeld help me or do I need to go to a special store? Not looking for the best, just better. I like to play music loud without it sounding strained or tinny. Any suggestions appreciated. Thanks!