Rockwood AMP-5556 Car Audio Amplifier "detanator" Questions

i plug in rockwood detanator VII and it goes to protections mode i wired up my rockwood detanator VII and it goes straight to protection mode i dont know what could it be i never used it until now and

Amp volume problem I have a Rockwood Detanator amp that has a problem keeping the volume on one level. It will play fine and all of a suddent it turns up wide open for a few seconds and then goes back