so a few days ago i had a hint of smoke coming from the trunk and the subs started to act weird. Every ten seconds the left sub would make a loud thump(as in it was making lots of bass) even with the volume completely down. That was about 3 weeks ago and never used it since. Now today i took the seats out and took out the sub making the noise all of the solders and connections looked good and couldn't see anything wrong with it. Then turned it back on and used just the right sub and it worked fine. I then took that one out and put the left one in where the right one. The sub worked but the amp has two lights a green and red. The green is always on assuming to tell if it has power or is on. The red every time it comes on sounds like a breaker is popping and the sub gets noticeably quieter. i then put both back in normal places. Now the left sub does not work at all and after some time of the breaker popping the right sub works fine and the breaker doesn't pop but the left sub does not work at all. Should have done this earlier but then hooked up a multi meter and checked the power. The left amp the one that doesn't work at all only receives less than half the voltage. What is causing this is it the amp or the sub and how should i further diagnose them. all wires and connections are tight and properly connected.