I bought this car about a month ago then one day the driver rear speaker started to make some weird noises. Sounded like the speaker was blown so I removed it. Days later the driver front started to make noises too but before I could remove it all speakers went out. I have read online it could be a speaker wire grounding or shorting, the radio or the amp. I believe I do have an all because I see wires running to the bottom of my passenger seat. What is the best process to figure the issue out? Should I remove all door panels or go check the amp? Also the radio is working and has power should I still check fuses? Any help would be appreciated thanks in advance