93 Civic rear speaker install help!!

I am trying to install some new infinity 6.5" speakers in a 93 civic 4 door. I dont know how to get the rear deck off. There are no holes in the deck for the speaker either. I was going to cut a hole through the rear deck to expose the speaker for better sound but there is a slope that would interfere with the speaker cover. Can anyone help me with this install? Thanks,
Chris

try posting this in the audio forum
http://139.81.142.25/vbulletin/f1040/
you might get a better response :)