Need help replacing front door speakers.
 

I have a 2003 Saab 9-3 Linear (4 door sedan) and my driver's door speaker is blown, so I found a pair of front door speakers on Crutchfield.com for $50. I was just curious if the installation process is difficult for a Saab. They have directions on their site, and it seems like for some cars its as simple as popping off the speaker grill, unscrewing and unplugging the speakers, plugging in an adapter, and then plugging in and screwing in the new speakers. Is that what I should expect?