Ive got a quick simple and easy question

i did some searching so just a simple answer will be fine

I am gonna be installing a headliner from 1aauto ABS headliner

do i need any type of glue or tape or will it hold completely fine with just the sail panels plastics and overhead console holding it up??

also ive removed the troublesome sun visors so ill need something to make sure the front of the headliner stays up whats the recommended 3M product for this?

 

The front plastic window pillers hold it up along with your visors (yea i know, i dont have any in my car either and it works fine) a plastic clip, your light, your rear roof panel, and your side plastic panels and rear doors pillers. All this holds it up no adhesives or anything.

 

thanks