Amp making car elec. flicker

I've double checked the positive and ground wiring and can't find why my car flickers with it's electrical. Does this sound like a fuse or does it sound like something else? I don't think it's the alternator or battery since I had them both checked out. Could it be something wrong with the remote out line? Let me know what you think.

Thanks guys

No, It was all new that I bought. The amp is about 3 years old. I had it checked out at a repair shop and the guy said there was nothing wrong with it. Maybe there is though. Do you think the flickering is a car fuse or something? I have a new battery and the alternator was checked out ok. I didn't have it checked while the amp was on though. If it was an alternator issue don't they typically drain down and not just click off? I've been through the whole alternator replacement once before on another situation. Any replies are welcome. Thanks

Really, I had the same setup before with the same alternator. Well, I'll have my alternator checked out again with the amp on and see if that's the case.

Thanks

Over time, a stereo setup that draws more current than the alternator can safely handle will wear out the alternator (and the voltage regulator and other components.)  It sounds like maybe if your system was "fine" before and nothing has changed other than using it for a while, you may simply have worn out the alternator.

I'm going to have the alternator checked out this tommorrow and see if that is the case again. I just thought the alternator would wear out slowly and not just suddenly stop. Would cold weather play a factor in the sudden problem? We'll, whatever the case is I'll have the alternator checked out again. I think it's probably that. It just throws me off how it just kicked off and then made the car flicker. I always thought alternators would slowly be worn out. We'll see how they read it.

Thanks