hi
i just did an install in my car
i hooked up the amp sub and all that stuff
before i hooked the sub and amp up i had 4 speakers running off my head unit
then after the install i fired the system up and it worked good
then like 1 minute later all 4 speakerrs stopped working and just the amp and sub worked so there was no sound just bass playing from the sub
so thats where im at now dont know what the problem is

anyones help would be great
thanks