I am going to give you the benefit of taking your words at face value although to me they seem like a save.
Are you saying students should not install a system as that may detract from their studies? I think most people study not in their car but in a room be it their house, friends house library etc.....I am sure that most of us have begun our sound system adventures when we were students. There are some exceptions but overall I am sure that holds true.
You seem to think that only mehrans can be broken into. I think that is a fallacy not only in Pakistan but around the world. My mustang was broken into in america when I was there. No keys there but electronic. Hondas corollas etc all are broken into be it in Pakistan or anywhere. If a guy wants to steal your system nothing will stop them.
Even if that point of yours was valid the way you phrased it certainly was not. You were downright insulting. It seems you are painting nabeel aslam as your friend and that things are fine. If so then what else can anyone say but good luck to you and be careful in how you post in the future.
Its better to be a support and give good advice than be negative and insulting.