WARNING: This page is about a different car, the 2008 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exterior Transmitter Antenna Assembly, Interior Transmitter Antenna Assembly And Receiver Antenna Module With Torque Specifications (1 Of 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: Exterior Transmitter Antenna Assembly, Interior Transmitter Antenna Assembly And Receiver Antenna Module With Torque Specifications (2 Of 2)