ROFL!!! Could be a new recall with the Toyota Camaro!!!
Give Steve a shout at ******** he will get you squared away for sure, his customer service is excellent. You may have a bad RCA connector, if I remember correctly I think Steve hand solders the RCA's on the harness. With that many going out the door one or two may get wonky. If not that he can assist you in troubleshooting.
Plus what was the amp? You mentioned has been in the last five of your installs? Could have just been the amps time.
Cheers
K