Upgrade all of your interior and exterior lighting with Diode Dynamics. You can probably do all of the car minus low beams and fogs for under $100.
I love this key fob holder! So much that I just ordered 2 more. They're great with the BRZ smart key...and they match the interior.
http://www.ebay.com/itm/380337447263...84.m1439.l2649