This is probably a stupid question but what is the best way to get inside the door panel to get to the door locks? (Need to disable the stock alarm)

 

I dunno what you intend to do, but which handle do you want to get to? Exterior, just pull off the cover on the inside and remove the 12mm nuts and the handle just falls off. Interior, there is a screw near the handle, and maybe something on the bottom, but it's just a matter of popping the attachments on the door panel out of the door frame. HTH
~Tom