MTX X Thunder 1000XD Car Amp "stereo goes louder" Questions

stereo means your left and your right are separate channels and each speaker has 8 ohms. 8 ohms bridged means you bridge the left and right channel to increase the power output of the amp and you have

goes away but when the car is on and running it makes a high pitch wine threw my speakers. also if i rev my car up it gets louder... any ideas on my problem or how to fix it please let me no. thnx. oh

...goes away then you should try grounding the stereo to a better grounding point, the factory grounds are usually not very good at all. Then try it again, if it is still there try replacing the RCA"s. ...

...stereo fine as long as I don't start my car but if I start it a weird sound comes through the speakers and gets louder as RPM builds. Is there a way to get rid of this or is the amp screwed? I just ...