one thing i forgot to ask in my previous post that with all electrical accessories (add on) in your car like power side mirror,power windows power steering de-fogger, HIDs...have you changed your car battery as well???coz i dont think that the original battery in alto is capable of bearing so many electrical add ons in your car...if you haven't changed the battery i shall advice to get a bigger battery bcoz even if it is not giving you problem uptill now,i can give problem any time...specially now in summer when you have to get your AC on.