Britax Safe-N-Sound Instruction Manual page 59

SETUP - SEATBELT FOR FORWARD FACING
ENSURE SEATBELT IS ROUTED ACROSS
THE CHILD SEAT UNDER THE TRIM.
DO NOT TRAP HARNESS STRAPS.
Step 4. Engage the vehicle seatbelt buckle and
tongue.
ENSURE THERE ARE NO TWISTS IN
SEATBELT. REMOVE SLACK.
4
59
Instructions for Installation & Use