buzzing noise

[gilby7887]

so in my jeep when i turn my radio or plug a cd in i get this "buzzing" sound and it seems to change pitch as i give it throttle.
:thinking:
any info would be GREATLY appreciated
my system is Boston acoustic component up front and Momo components in back, powered by 4x900 amp
thanks in advance

[Captain-Obvious™]

check your speaker wires... if there hooked up to the head unit and not to speakers then they will buzz had the same problem in my old jeep

[BanginJimmy]

alternator whine. Check your grounds and if you are using cheap RCA's make sure they are as far from power wires as possible.

[hybrid90accord]

what type of headunit r u running

[jew_boy]

most of the times it's just a bad grounds