Peg perego car seat on a stroller?? how??

"I have got a peg perego stroller, but another type of the infant seat. After long searched online, we understood that once you buy a stroller, you almost always have to buy a car seat from the same company, or you won't be able to use it as a travel system (which is exactly how we are going to deal with the situation)" If you have a car seat that is not the same brand as your stroller, you are supposed to loosen the stroller straps enough to hook them onto the area where you would use the car's seatbelt without the base. This will make the car seat more stable in the stroller and prevent tipping. Note: The car seat must nestle into the stroller seat area AND have a bar across the front for this option to be safe.

Peg Perego car seat is only compatible with peg perego strollers.
It is not clear from your very laconic question what you really need.

If you need to install a peg perego car seat on a peg perego stroller, then just look into the manual, OR, if you don't have one, search for it online.
In case you need to install a peg perego car seat onto any other stroller, I doubt a lot, it is possbile...
I am in an opposite situation.
I have got a peg perego stroller, but another type of the infant seat. After long searched online, we understood that once you buy a stroller, you almost always have to buy a car seat from the same company, or you won't be able to use it as a travel system (which is exactly how we are going to deal with the situation)