Carina E Rear Speakers

[Quattro]

Hello everyone...

I am from Lithuania.....

I have a Toyota Carina E GLI (model of 1997)....

I want to put new REAR Speakers (inside the rear doors) replacing the old ones

and i am facing with a problem, how to remove rear Speakers covers, how can i take it off, i have haynes repair manual but the are no picture how to dismantle rear doors that i cann access rear Speakers, maybe just need to cut off plastic cover from the doors?

what size does speakers fits best? maybe 9x6 ?

maybe can anybody to tell or share a picture how access that speakers to replace new one...

Can anybody help me?

Thanks ins Advance :)