alright so the moonroof stops at random points in its travel to wreak havoc and grind the crap out of itself. the noise is definitely a repeated clicking, like when you turn the medicine cap to open without pushing down. Also, the roof will not stop at its designated points, like it will open up to tilt, bypassing the closed position. Is this the motor itself, or an accessory gear that can be replaced? How much of a pain in the *** is it to get up in there and replace that stuff? cost?