Hi all, first post and hoping to get some help. I have a Soundstream Rubicon 6.400 and the protection light is coming on when I turn on my car. It would make a loud pop sound through the speakers and then cut out. Sometimes I would get sound out of the speakers for 1-5 minutes, but it always cuts out. All I have hooked up to it is four door speakers. It used to have a sub too, but it was stolen I started troubleshooting by removing the RCA plugs on the low level input, and then disconnecting all my speakers from the speaker outputs. The protection light still comes on. I checked my speaker wires and am getting 2 ohms on them, and I'm pretty sure my ground is good as well. I get 11.87 from Batt+ to GND on the amp and 11.87 from Remote to GND as well. Does anybody know what else I can check to see if it is a problem with the amp or how to narrow it down any further? Will the amp go into protection mode if the speaker load is not hooked up to it? Thanks for any help.