I have A 97 Jeep Grand Cherokee I hooked up a head unit I get sound from it from all the doors and hooked up a amp I thought properly but I was sounding nice the first day then the next mourning I turned it on and I didnt hear any subwoofers the speakers are good I hooked them up to a different system and they worked .I'm so confused I wonder if I have some door speakers crossed and thats stoping it I hooked up at least twelve amps and changed everything that I can change and still no sound ????The only other thing that I can think off to get sound is to hook up a RCA inverter well thats what i think well what do you all think? please help
