My 2007 Ram has the stock Infiniti 7 speaker system and works quite well. Our '15 Challenger has a mid level sound system and is decent but not quite as good as the truck. Both do have a decent midrange tone to them. My '70 Charger has a traditional Kenwood AM/FM CD player with 2 6X9s in the rear deck and 4" speakers in the lower front kick panels. The sound is not very good. Newer cars seem to have a fuller sound. My Charger sounds tinny and hollow. I do have sound deadener under the carpet. For awhile, I had a home made box under the speakers but it seems to sound about the same without it. I put this stereo in several years ago and while it is much better than the AM radio and a single speaker in the dash, it is still not that good. I don't need window shaking bass. I just want a decent setup to enhance the driving experience. I don't know what brands are good nowadays. Years ago I remember people with Clarion, Sony, JVC, Pioneer and Kenwood speakers but today, I am not familiar with what people are using. I wish that I could test some speakers without feeling like a jerk for returning the ones I don't like. What are you happy with?