Car audio anyone?

Got a car and the stereo sucks. Don’t want super boomin, but need to get better speakers. Any suggestions? I want to Shr MenDing, but the audio guys don’t do cars. Got directions but of course the area the guy sent me to no longer exists. There was a place I went to on FuHsing and MinZu, but I went back two weeks later and they had closed! Help!!

The Nissan aftermarket shop beside Carrefour in Hsindien have some car stereos and speakers of different brands. You could try there.