Little box BIG punch
I kept the stock nav, but added a 6 channel JL audio amp, Alpine Type R 6X8 in the front and Type S in the rear, kept the factory tweeters as they sound pretty good. The biggest surprise was when I picked it up, I replaced the factory sub with an Alpine 8" type R in their ported box and wow, for a little sub, it def packs some impressive punch. I didn't loose any space, Amp mounted behind the storage box under the seat and the new box replaced the factory box position. Very impressed and excited I didn't loose any space for storage.