My amp i just instaled is a terminater mtx 250 watt amp and the lights are flashing instead of a constant red i checked my power and ground what else would it be

Check your ground wire it could have dislodged itself and needs to be refacened

Mtx 801

Try using a 4ga ground cable. Ground it to the frame of your car. And use a 2ga and a inline fuse 100amp run this to your battery. And you need a cap. A 1000 watt will work good. Hope this helps....

check the ground make sure its not loose from the frame of your car thats why the red light comes on.

Is there a option on the chanels that say ''Bridged''? If so, you can hook the subs up in parellel or series to get different ohm loads. Usually the lower ohms, the more power amp puts out. Those subs can handle 225 watts RMS whitch means the power it can handle constantly. If the amp gives more than 225 watts RMs, you could be at risk of blowing the sub. If you could give me the model # of the amp, I can be of more help.

DID THIS JUST HAPPEN ALL AT ONCE ? OR DID IT GRADUALLY HAPPEN? CHECK GROUND FROM AMP , INSTALL ONE FARAD CAP . STOCK RADIO ISNT REALLY HELPING , MOST AMPS OF TODAY TAKE A HIGHER SIGNAL FROM HEAD UNIT . ADD ONE FARAD CAP AND SEE

its just a power light to let you know its on

if the lights on and there is no sound it's either a cd player issue or your rca issue or the inputs for rca's on the amp are no good. or you have your subs wired at a wrong load to your amp and it is in a constant protection to avoid burning up.

Could be a blown speaker/sub or a wire is crossed in the sub enclosure.

Unfortunately I think you need to get it repaired or replaced .When a protection light will not turn off it is generally caused by an internal short and needs one or more replacement parts for it to come alive again.
-Dynami