We installed Maggie's Roundabout this weekend in our 07 Accord. We were unclear about the tether. We secured it to the front seat track thingy as I didn't think we had any other option, there's no place to secure it on the floor of the backseat. Is this right?

Ready to rumble.
Re: Tethering rear facing convertable seat question
Here is a site I found helpful:
https://www.angelfire.com/wa3/isakswings/ratetherrf.html
And this is where I had to order it from:
https://www.safeandsecurebaby.com/Britax-D-Ring-Tether-Anchor-Connector-Strap-pr-16847.html
vbmeg, you beat me to the punch! I just went out to the car and took some photos. It looks like our car seat must have come with the strap you had to buy. Here's how it looks in my Rav4.