So Im now down to ONE channel on my radio the left rear. Ive checkd the wiring and were all set everything is plugged in. Wierd thing is all the tweeters work jsut the wiring on 3of 4 woofers dont work. So i have all of my speakers connected to the left rear. THIS JUST WONT DO ANYMORE. So i am trying to see what is wrong and i am down to one issue. On my amp what plug is the one from the radio and witch is leaving the amp???????????



Please Let me know what the red circled plug is and what the blue circled plug is

This will help me determin to replace the radio or the amplifier.

Thanks