Thanks bro for sharing your personal experience. I agree speakers can never overcome the sub, but in Mehran with cng you gotta love with it, as back phatta can't hold and produce desired result of subs. Bad_cheetah already said to put a shallow sub one will have to loose the view of back mirror.
I've seen a combo of 6x9 + 6.5x6.5 in a pair and their sound combo seems very nice and music detail is very good. I personally don't like 718 as it only gives base not quality music, Sony 6941 has base and music at mild level.
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