Put some thump in the audio by adding an Alpine PWE-S8 powered sub in the passenger footwell. The install was super easy and 100% reversible. The PWE-S8 was easy to work with, is built like a tank, and has a single quick connector for power and sound - so it can be quickly stowed in the trunk if more room is needed or theft is a concern. Still playing around with were it fits/sounds best.
I upgraded the dash speakers to Infinity REF-4022cfx's a few months ago to my otherwise stock CDR-23 and now with the sub it is putting out some decent sound. This isn't going to wow any audiophiles or bass heads, but loud enough and very listenable.
No pictures of the sub install yet but here is one of the outside after a thorough detail.
