Joe X

Here for $129.00, free shipping and installation accesories: cdx-gt740ui Buy it and then review it after a few months, Sony bashing must stop.

Ok, misread, how about the power acoustic eq having it's output gain low to the amp. You can even force a cheap HU to clip by having a low input gain on the amp. Probably bypassing the eq could be another test.

Disconnect the RCAs from the amp and if the noise stops then the problem is with the head unit.

baaudio, Sony aims at first time buyer, can't compare Pioneer SQ with Sony, I wouldn't mind the 2V (keep in mind the price). I can't say that I love JVC but they have a ton of features are inexpensive and reliable, what would make a good argument to buy Sony with so many alternatives.

Very cheap and good quality: http://www.sonicelectronix.com/item_32848_Pioneer-AVH-P2300DVD.html

You can get a Pioneer for less than $300 new.