having problems keeping the amp on

I was doing a  freind some help installing his amp and hu when we ran into a problem.I put in a kenwwod hu and a 400w profile amp .Now I connected all the car speakers and two "8 subwoofer .The problem I am having is when I turned on the amp the amp will shut off and turn on constantly causing the speakers to make a popping noise when it did that .Now I tested that amp in my car with the headunit but I threw in my dual 12" 1000w lanzar speakers and worked fine which makes my head scarcth any help will be appriciated.thanxdave25456

throw it in your car again, , but with the 8" subs hooked up, , i bet there shorting out.2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Check your power & ground wire.

check the wires on the subs make sure none are touching each other or the basket2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

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also, how's the condition of the car battery? strong enough to start the car with ease? all problems can be resolved with a hammer

Do what Alpine guy said. Thats were my best quess is.  WooT! 

The comming on and cutting off is a typical Ohm load problem. Check ur speakers connections because ur overloading the amp somewhere."Shiny chrome when used in conjunction with bikini models is particularly effective in inducing brain deficit disorder"

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how do you check the power or ground  wire to see if that is the problem?dave25456

Disconnect all the speaker wires and the rca cables. Make sure that the connection on the power / ground and remote on wires are nice and tight. Make sure that there is not a single small strand of wire that might be touching the amp or another terminal. Make sure that where the amp is grounded to, the connection is clean and tight. If the amp is stil turning on and off, then the magic amplifier dust has escaped and the amp will need to go in for service. If the amp is fine, then plug in the rca cables. If it starts to go on and off, you know where to start looking for the problem. Run a new rca cable from the cd player over the seats to the amp. Did this solve the problem? If this was not the problem then look at the speaker wires and how the wires are attached to the subs. Post up the results.Top Secret, I can tell you but then my wife will kill me.