stereo turning off when the volume is up?

[A.B.N]

i have 2 12 kenwoods with a 1000 amp fosgate...and the problem is when i turn the volume up from the stereo it would play for like 20 secs then it would turn off and it will come back on but it will just turn off again until i turn the volume down...back then i had a problem with the subs CUX i would turn the volume up and it will turn my amp off until i put the volume down...so they told me it was my wirering so i change it i put in a kicker 4G wire..and it was working fine for about a week but then it start it turning my stereo off every time i would put the volume up and it turns off on the midds of the volume...need help ....thanks for the help..