I'm looking for recommendations for infant seat/convertible seat options for side-by-side in the second row of my Ford Explorer, on the 60 portion of the 60/40. We have a newborn, 2 y/o (still rear facing, but could be forward facing), a 9 y/o (still needs a backless booster due to height), and a 12 y/o who doesn't need a seat. 12 y/o is with us every other weekend, and will sit in the 3rd row. Ideally, the booster for 9 y/o will be on 40 portion of 2nd row for ease of accessing third row without having to uninstall/reinstall a car seat each time. We currently have a Chicco Fit2 for newborn, a Graco 4Ever Convertible for 2 y/o, and a Graco backless booster for 9 y/o. They fit (snugly), but flipping the 40 portion is impossible with the Fit2 base in the center seat (currently have 12 y/o entering/exiting the 3rd row through the rear hatch, which will become a nightmare in winter). I was looking at Diono Radian RXTs for both NB and 2 y/o, and possibly a Bubblebum for 9 y/o, but I was hoping to see if anyone has had success with the Diono installation in the 2nd row middle seat, especially given there isn't LATCH in that location and inconvenience of rear-facing install with shoulder belt on that model. Budget isn't an issue for new seats, its much cheaper than buying a new car!!! Help!