I wrote the following a while ago (before baby was born), thought it maybe helpful for the dad-to-be’s, although not very comprehensive.

Nissan USA has published a PDF document on compatibility of car seats with some instructions on Latch (lower archor points and tethers for children. Personally I only found two latch points at my 2001 Altima (the manual comes with the car does not say where is the latch/lower arch points), and I used it. I felt this is tighter and secure than the seat belt comes with the car.

I also found quite a few video when I searched “graco infant car seat installation” at Youtube.