Section 47 (Audio System & Video System (Service Information)): Amplifier: Description
WARNING: This page is about a different car, the 2006 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of DAIMLERCHRYSLER CORP.
Vehicles equipped with the Boston Acoustics speaker package have a separate amplifier unit. The amplifier is rated at 288 watts. The amplifier is mounted to the left rear quarter panel behind the quarter trim panel.