My compass has not been working for quite some time. I was so frustrated that it would not work. Until I found out here that the aftermarket speakers affect the sensor mounted under the rear deck. So I did the logical thing to do. I moved the senor. All I have done for now is tape it in place but it will be more permanent tomorrow. So I went out to an empty parking lot and spun in circles and sure as **** the compass calibrated for the first time in months. It work perfectly. It moves when I move and points in the direction it is supposed to. I will try to post it in the techinfo section as soon as possible.

Hey, let me know how you did that. I have the exact same problem and was thinking about doing that but didn't want to mess anything up. Good job on that one.

I sent my steps to the webmaster for submission into the techinfo section. Its a really simple fix:

As you can see when you open the trunk, the compass sensor is a gray plastic box with one connector. It sits closer to the left speaker than the right. So I decided that the sensor must be moved directly in the middle of the speakers; right behind the third brake light.
1)remove sensor from rear deck by pulling out the plastic screws. Just pull, I suggest a screwdriver as a wedge.
2)get some slack in the line so that there connector can connect with the sensor.
3)Now here'* where you can be cheap and half *** the job or do it right.
a. Drill new holes for the plastic clips to screw into or...
b.tape or glue the sensor to the rear deck.
JUST FIND A WAY TO MOUNT IT!!! ITS EASY!!!
4)connect the wires to the sensor, then mount the sensor. It'* nearly impossible to connect the wires after the sensor is mounted. You'll see what I mean.

I was wondering what happened to this. Glad it worked. I'll move this up to Techinfo today. (giving proper credit to the guy who 'took one for the team' of course).