I just got my new Axiom speaker system and EP-175 has an auto on problem

I read a few posts about EP-175 auto on sensitivity - I have the sub connected to my receiver with a good quality AR Pro sub cable - when playing something on my system the sub wont come out of sleep mode unless while powered I unplug & plub back in the RCA connector then it powers right up - It also goes back into sleep mode during like watching a DVD and wont go active unless I unplug & plug the rca connector

Has Axiom figured out a solution for this? I would be happy just eliminating the auto on feature.