They just pull out and towards the front of the car, it's been a while since I removed any but you can do it with the front doors open
Was thinking this literally as i came onto the forum as im going to colour code my Mk3, is it the same with your 197/MK3 strips?
I have no idea sorry, I've never taken them off. I imagine it's the same as the mk2 but don't take my word for it