Hope some of you experts can help me with this problem. I have a 2k2 with the bose system. Recently I upgraded with an Alpine 5 channel amp, Polk front and rear speakers, and 10" Alpine sub. Made a HUGE difference and really sounds great. My problem is that I have some engine whine when accelerating from a stop. This occurs with the radio on or off. I have Monster cable for my power and I tapped into the factory harness just before the bose amp. I have disconneceted both the regular and sub Bose Amps. Additionally I ran separate wire from the tweeters to the Polk supplied crossovers and left the mid/bass through the factory harness. I believe the system is well grounded. The whine does not occur if I rev the engine in park...only when driving. At highway speed it is for all practical purposes non existant. What would be the best way to trouble shoot this? With the stereo on moderately loud it is not a problem but when I am driving clients around with the stereo off it is quite embarrassing and annoying. Thanks in advance for any help on the subject.

Jeff