speaker upgrade problems
 

I have an 09 sportback, i wanted to upgrade my door speakers to 6.5" components with tweeters. i'm struggling changing them though. does anybody know how to remove the door trim so i can get to the speakers. (i've had a go but failed :( )

also as i do not know what size speakers i have as standard will these be a straight swap or will i have to do some jigging?

help would be much appreciated. thanks