my batt keeps dyin electrics are doin my nut in i have changed the terminals i have a brand new alterntor i have checked the earths a 1000 times wot else can it be i have my sound system plugged in i had the turn on wire onto the blue wire before and it was fine but now it doesnt work i have changed it over to the red one behind the headunit could it be this thats the problem all i wont is a workin car ****in thing