2005 Accura EL stereo removal and change. Can't find any help online?

So my Accura EL stereo is out of date, and i want to update it to one that has an AUX input in it. However, i can't seem to find my car model instructions online. The closest thing i can find is a Honda Civic of the same year. Is it the same process?

I'm thinking of getting this:
http://www.bestbuy.ca/...9e91ceen02

what do you think? Will it fit in my car? I heard some stereos have compatibility problems.

please let me know, as i'm not too familiar with vehicles.

Why, now is an era of information technology, more or less can be found on the Internet against the solution