2008 Toyota Matrix
@Judo
Nice car.
Alright. So, really all you need is these 3 items and it should come up around less than 100 bucks:
Here's a video on how to remove the radio yourself if your willing to go thru the trouble. Your also gonna need to buy the tools to remove it like a screwdriver. The plastic trim looks real easy to pull out without the tool, but if you need to, just pull some tape over a flathead and you'll be straight:
OR you hit up an audio shop or custom shop that can install it for you and you just pay the labor. Shouldn't cost much since it should only take a good hour or less but it depends on how the shop wanna charge you.

I would of hooked you up myself

, but you live all the way up in Canada and I live in Georgia.
