Section 236 (Audio/Video/Entertainment/Connectivity (Service Information)): Amplifier: Description: Description
WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
The amplifier is located behind the driver side speaker. The amplifier can not be adjusted or repaired. If faulty the unit as a whole must be replaced.