yups bro u can put them in mehran for sure.. it will be better if u can post ur budget here so ppl can help u better.. u can get speakers costing 15 to 20k ...
loud electronics is in liberty market.. i dont remember the name of that plaza but when u are at libert round about u can see a huge pizza hut board on top of a plaza.. loud electronics is in that plaza..
also chech for polk audio db 690, polk audio momo, infinity kappa\ refrence series
u will only like these speakers if u really know what sound quality is otherwise go for 6992r.. most ppl here are ok with them