yep, then that would tell you the problem wasnt cuz of speakers not installed but possibly because the amp was searching for a ground through the rca's
My only point was to ensure that someone less educated that reads these posts doesnt act on things based upon speakers not being connected when powering up a head unit.
No offense, good job with the heli work you mentioned, but any installer, will tell you that a mechanic knows the engine of a car ( or similar) an electrician or an installer of car stereos alarms and what not, should know the electrical side of things in a car. But that doesnt mean they know the other side (mechanic knowing electrical or an installer knowing mechanical.) I always chuckle inside when a customer says "well i took it to my mechanic and they said...." because in the end, they are a mechanic, they are NOT proficient in the workings of car stereos and such... unless of course they work with that as well. A good installer is not always a good mechanic nor is a good mechanic a good installer all the time, in fact most of the time they dont know the first thing about the other field.
I have had people say, ohhh I am an IT tech for microsoft and have been teaching for 20 years with microsoft. then turn around and hand me an xbox to mod saying I just dont understand this thing. <--- Prime example of someone being in a similar field but yet not carrying the knowledge needed to solve the problem.
anyways, good you got it working like you desired, enjoy.