Hi I am from India and at the end of last yr i got above HU,JL audio E6450 amplifier,infinty kappa door spk,infinty 1040subw [from USA]in sealed box with audison wiring.[from India] Soon after my left front door spk would have gharr-gharr sound when volume was zero like changing one song to another.No such sound while song is playing. Someone very respected here told me that it cud be a proble with its zero bit circuit. Now obviously i have to show it to alpine service centre but as its quite far away and may not go there in near future can u guys help me in diagnosing the problem and its likely solution???