It might not necessarily be off the list totally; I'm just not sure now which vehicles we can achieve correct installation in with the new recommendation method.... If your local store has a good return/exchange policy & you have techs nearby to help, I would at least try

Last resort: contact
www.ezonpro.com customer service about using the Kid-Y harness with a dedicated
booster (I think the
Compass B510 would work best if allowed).
Or there's the Ride Safer Travel Vest, ideally used only in the center (shown in the 2nd to last image in my signature)