A.M.
Both of my son's hated their infant carrier. My best guess is that it 1) made them hot and 2) was unfomfortable. So I did something risky/unsafe and took the cover off, added 1/2 inch foam pad and put the cover back on. That helped somewhat as their crying decreased quite a bit. But it wasn't until I converted them to their Britax car seat (for newborns - 50 lbs.) that the crying really stopped. Now, the only reason they cry is when they are hungry. Perhaps you know a friend who can loan you their carseat for a quick trip to see if your baby cries less. The seat just might not be comfortable. Good Luck.