Hi people, have an a4 cab with Bose system, want to upgrade the main door speakers and rear speakers. Any one able to help with the dims and size of the speakers docs and any recommendations for speakers. Also thinking about adding sub in rear?? any ideas

thanks

 

for speakers, i would use MB Quart. i used to own a set in my old car and they were amazing. Focal also makes excellent speakers. for the sub, JL is very popular.