Chevrolet 2004 Venture Owner's Manual page 71

Don't use a child restraint that requires a top strap in Top Strap Anchor Location
the right front passenger's position because there's
no place to anchor the top strap.
Anchor the top strap to one of the following anchor
points. Be sure to use an anchor point located on the
same side of the vehicle as the seating position
where the child restraint will be placed.
If you have an adjustable head restraint, route the top
strap under it.
Once you have the top strap anchored, you'll be ready
to secure the child restraint itself. Tighten the top
strap when and as the child restraint manufacturer's
instructions say.
Second Row
1-65