Re: Adding amp to 2013 grand cherokee with factory Nav
You have a few options. There are Amps that have high level speaker inputs. You can install a LOC or processor where you take the speaker inputs and it produces a corrected outputs. They have RCA outputs that you connect separate amps to in which you connect your subwoofer and speaker to. You can research the JBL MS8, Rockford Fosgate 3sixty.3, Alpine Imprint and the Audison Bit Ten. Then you have the Line Output Converters (LOC) as mentioned above but the processors are more advanced. Check out 'Amplified' on YouTube for a Audison install in a Jeep SRT8.
2014 SRT - Bright White/Sepia/Pano/HK/Spidermonkeys