Stereo & Electronics - New speakers for 2000 Firebird.

I'm new here, so hello everyone. I just bought a 2000 Pontiac Firebird that had a broken power button on the radio. I put a new deck in and found out there aren't any front speakers or they don't work. I haven't looked because I don't know how to. I was thinking about putting these http://www.bestbuy.com/site/olspage.jsp?skuId=8699429&type=product&id=1199494646605 in it. Will these work? Will I need any special harnesses?
I keep hearing all this controversy about the monsoon system but I don't think my car has that? I'm not looking to spend more than 120 bucks for a pair of speakers because I am a poor college kid lol. Thanks alot for the help.

Also, how do you get the door panel off so I can see if the stock speakers are even still there?

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Good choice, i like them. However u can get them a lot cheaper. I have places that i can get them for 69 a set.

Just use the search, plenty of threads on the subject