Hi Simeon, it seems like I did the samething a week ago regarding the speaker connector, like you said the guide states to pry it straight up and I believe I snapped the four connectors from the board. Did you do the same and if so, have you fixed it? Thanks for any info you my have.

You could have torn the power flex cable when taking the damaged screen off. It is located at the top right corner of the iPad. Happened to me before :-(. I replaced the cable myself. There is a guide on this site to replace...good luck!