Squeeky Sound Coming From The Back Window/speaker

[TheCurlyOne]

Hey everybody!

I just bought a 95 SC300 with about 120,00 miles on it and everything seemed fine and now there is a squeeky noise thats coming from the back of the car, the faster i go..the more rapid it gets, also the volume of the cd player seems to affect it too a little..Please help, im pretty new to Lexus's. Thanks!

[joedoc]

i was thinking that this could be a wheel bearing (or differential), since it varies with the speed of the car. however you threw me off with the fact that the stereo volume has some effect----do you mean that the noise is louder when the stereo is cranked up? is the noise actually coming out of the stereo speaker?