Electronic / stereo issues

[jeffro788]

Hey guys, I am unfortunately still on the old system as far as the alternator goes. I have put a small amp and retro radio in the truck and it works fine at low rpms but midrange rpms it cuts out. I have jiggled wires around to see if it is a loose wire but they are all secure and it doesn't phase them. I get the feeling that the alternator is not putting out enough power to send a strong enough ignition (remote) signal to the amp. I don't think there are any issues with the amp though. Everything stays lit up when it cuts out as far as the radio and light on amp, but no sound until lower rpms.
The amp by the way is just pushing 2 6x9's and 2 6.5's - no subs so it isn't pulling a lot of power.
I plan on going to newer alternator just hoping this is the problem.