Depends on how you run the interconnects to the inputs. You will need to put two lefts on the front channels and two rights on the back channels, or vice-versa, but you get the idea.//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
You can run a bridged 4 channel in stereo by connecting the left output from the head unit to one set of bridged channels and the right output to the other set of bridged channels.