Need help, cannot see any screws or pop off covers for screws to remove rear door cards. I want to replace speakers in rear doors, if there are any there, the door cards have space for them. do they just pop off ?

They should just pop off...worth gently pulling at them rather than prising them off though.

Generally, there are usually some fasteners within the arm rest area (if any armrests fitted) as they have to secure the weight of someone leaning on them.

Here is a picture of the screw fixings, hope that helps

Thanks for posting that info up Martin.. great information for anyone removing doorcards

Thanks for the pics, they did the job Martin.