Yes I had the base stereo system.
Mounted the amp under the passenger seat (removed), I also used a 4GA amp kit w/ 60-80A fuse to connect to the battery, 12GA speaker wire, 10 ft RCA cables, & a couple of hi/low level adapters (JL XD CLRAIC2-SW). Line converters aren't necessary because the amp has built in line converter & can handle line level or speaker level inputs. I also hooked up an amp remote level control (JL HD RLC), basically a potentiometer to control the amps output to the subwoofer. I attached it inside the console, and adjust as necessary. Basically on the radio I set the treble up a notch or two, keep the base flat, then adjust it with the remote.
Besides sounding great, my system looks stock, out of sight, out of mind, when I'm in town.