First, great info on the car........I didn't know if it were a 4 speed or 6 so I attached both.
I also wanted to let you know that it looks like you may have some recalls on your vehicle. The dealer may fix these for free. Please contact the dealer service department, give them the VIN number of your car and have them check on these to see if they apply to you.
Recall 08V178000: Air Bag Impact Sensor Replacement