I have a Ford Fiesta 2010 model. Its fitted with JBL GT5-A402 amplifier with 240 watt. It is connected to a Pioneer head unit. Rem wire is working fine. Amplifier is powered directly by the battery with fuse and proper gauge wire. The power light will always be ON even if the head unit is switched OFF. But the light behind the JBL logo will turn on when the head unit ON.
My questions are 1) Do i need a separate power switch for the amplifier? Will it drain the battery? 2) Can i use a bed switch of 230v AC 6A for this? 3) I am having 40AH battery, will it drain if i use the amplifier while driving?