Thank you so much for the advise
1 more problem I am facing with my M-800. that is when I start my car... every time self's not starting properly. when I turn the key first it stuck than starts properly. some time starts normally but some time creates same problem.mechanic's garage is too far from my house so he's making excuses for not coming than I told him the problem on phone. he's not sure what's the actual problem? he said "you have to give it to car electrician for self servicing" now I am confuse what's the actual problem..problem with self or wiring.. my battery is NEW. will mechanic solve the problem or electrician. please tell me anything by which i can check the problem so after that I will call mechanic or electrician.