I am looking to install a rear facing infant capsule on my 2000 CRV Sport.

It is possible to have a center roof anchor point on this CRV model.
The user manual mentions the 2 side anchor points where you just pop out the little plastic cap and screw in the anchor. but there is no mention of a center anchor point.

But I see there is another plastic cap in the center just behind the sun roof.
I cannot pop this out easily and wondering if this can be used as an anchor point or if it serves some other function. (the manual sun roof open/close is in front of the sun roof)

Also the rear side belts do not have the locking function. If I have to put the capsule to one side then how do I lock the seat belts.

Thanks for your help.