Hello,

I recently added a pair of 8" subs to my 2004 X5 w/DSP. Sounds really good, pretty happy. I am wondering, though, is there are way to easily upgrade the highs and mids? Would replacing the stocks tweets/mids provide only better sound but also a bit more volume, or do I really need to add another amp/speakers. What is the best way to improve volume+quality of mids/highs?

Thanks,
TTM