Just a little something that I'm used to having in everything I've ever driven. It retails for around $250. It's features are pretty killer. It tells you if it's hot outside so you'll know when to roll down the window! When it gets cold enough, it flashes . For us guys who never admit they have no clue what direction they're driving, it tells you which way the car is facing. Finally, for those of you with stock mirrors who think you're cool flipping that little lever up or down when a car with high beams is coming up behind you, this mirror auto-magically darkens for you, meaning you'll NEVER see glare into your eyes again.
There's a few other choices for compass/temperature mirrors, but I chose this one because 1) I've installed it a few other vehicles before, and 2) the LEDs are at the bottom of the mirror instead of taking up a small square on the mirror itself.
Installation was a breeze. If I remember correctly, it only took me 1-2 hours. If you wanna try to install one yourself, here's 
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if you have any questions. Happy RAV'n!
