My wife just installed Tanaka 4point harnesses two weeks ago. Our 7yr old sits in the middle comfortably. You have to remove the factory installed seat belts. She used 40inch heavy duty cinch straps on the middle lap belt. Also had to cut small notches in the center plastic cover to accommodate the straps. Photos below.
We had to make our own seat belt harness bypass by splicing the wires going to the driver side seat belt together.
Going to by harness minders to keep the driver and passenger shoulder straps from sliding.
Last edited by Steve Polychronopo1us; 02-03-2019 at 12:04 PM.
Reason: Forgot to add the harness minders for shoulder straps