Got all the channels on the IMU to work last night. I then started to perform some crude testing. First thing I did was to get a few minutes of data without any motion. This seems ok, although there is more noise than I would have liked.
Next I simply turned on the car motor. I was fully expecting to see the magnetometer channels go ballistic due to the magnetic field, but I was not expecting the accel and gyro channels to go nuts as well. But looking at the car, the sensor deck was visibly vibrating to the point it was blurry.
So now I think I need to balance the tires (will my mechanic do this for me?) and vibration isolate the sensor deck from the car. Need to think on this one.