| I just installed a system into my car (1992 325is) and it seems to have some alternator whine problems. My system has the following specs: Orion CS 200.4 amp running 4X50 into 4ohms. This is powering orion 5.25 XTR speakers in the front. I have not yet connected any rear speakers. No the amp is not in bridged mode the other 2 channels are currently connected to nothing. Then I have a rockford fosgate 351M power amp 1X350 into 2ohms. This is powering an orion CS 12" DVC sub. My HU is a pioneer 7600MP with all 3 preamp RCA outs connected to rockford fosgate RCA wire. I run the 3 RCA cables along the right side of the center console until it pops out on the left side of the passenger seat. I then take it under the passenger seat, under the rear passenger seats, through the middle of the 2 back seats where they then connect to the amp's. With the volume all the way down, my left tweeter produces a soft static hiss. The right one however produces the hiss and a high pitch whining noise. When I rev the engine the noise gets louder and higher pitch. The left tweeter does not change. Another thing I should note is that I think I crossed over my R/L speaker connections because when i shift the sound to the left in the HU using the fader, it actually moves to the right. I know this switch is because I hooked up the speaker connections to the wrong places on the amp. I am going to try switching this and see what happens tommorow. Also, even when the deck is off, the high pitch noise remains. I am going to run some more simple tests tommorow. Any help would be greatly appreciated. Thanks | 
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