Let me start this off by saying i know hardly anything about cars and absolute fu** all about audio. So ive just brought my first car from a friend at work who knows ALOT more about cars than i do and its extremely well looked after. Its has an amp in glovebox for the front speakers and a sub with a built in amp in the boot for the rear speakers. When i turn the radio on and play music the rear speakers work fine but the front don't play at all, also the sub just makes bass even if nothing is playing. Im guessing maybe it has something to do with the front amp as the front speakers arent playing and somehow affecting the sub? Really appreciate it if somebody knows the fix👍🏻