2006 civic si with premium sound. Factory radio died a while back so I replaced with an atoto f7 CarPlay I used a harness to retain the factory amp. Works great a month later I replaced the blown front door speakers. With infinity primus 6.5 coaxial seemed like they would work fine with my stock system I thought they were 4ohm but box says 2.7ohm if that helps. Installed with harnesses that match the Honda ones. They sounded great for at least fifteen minutes on my way to work then they just stopped. Also the factory tweets in my dash don’t have sound either. Just the factory 6x9s and factory sub in the back have sound. Checked the settings in the head unit and it’s not fader or any thing. Will pull one out and test with the stock one this weekend. Is it the factory amp?