Is the squeak coming from under hood or under dash? I had a similar problem in my 03 under the dash. I am not sure if the clutch pedal mechanism is set up the same as yours. I noticed you said you greased the spring, there is another pivot point for the clutch that is right above the accel. pedal and that was the noise maker for me. A little silicone spray did the trick. Again, I don't know if the new model you have will be set up different, just thought I would share just in case it helps.