Hi I've been looking round for guides on how to remove the rear quarter panel in an 09 plate ford focus 3dr to replace a speaker and can't seem to find any that follow the structure of my car that are of great detail or help if anyone has any ideas on how to remove would be much appreciated

Trace the lines of the panel and look for any blanked sections which will clip off , if you see any of these there will be a screw underneath , if you are happy they are removed , then remove and rubber trim edging and the rest of the panel will have push fit clips where you will need to pull the panel to release .It might just be rubber around the door area and then push clips , but check around fro any blanks hiding screws first.