I'm new to the Commander world and also to the world of transferring audio through data signals. I've got an aftermarket head unit installed (power and sound ok) and have installed an amp and subs. The rca' s for the a.m. amp are run from the outputs on the back of the unit and the amp is getting power. No sound from subs. I've checked all connections ten times and everything is nice and tight. I am hearing clicking from door speakers now (was not there prior to amp connection). I've searched every thread I can find (even Ask Meatball) and can't seem to find an answer. I'm sure the answer is right in front of me but after working on this for ten hours my mind is melted. Anyone have a solution? Sorry if this has been asked prior but thanks for the help.