Remove front seats for amp

It is Torx. I want to say T50, but it could be T45 or T40. Sorry I can't narrow it down better. I've had to use all three sizes and I can't remember which size went with which component.

If you get the repair manual from scorched, you should be able to find the size and the torque spec in there.

 

If you can't figure out a fastener you probably shouldn't be removing and re-installing a safety item, especially when the only tools in your toolbox are a hammer and duct tape

 

Does the amp need both front seats out?

Be sure to bone up on the procedure in the repair manual for recalibrating the occupant classification ECU after putting the passenger seat back in, and make sure you have the needed tools.

Toyota Service Information and Where To Find It | PriusChat

 

I've had both front seats out. No issues. Just make sure to disconnect the 12V battery and wait for the system to discharge since there are air bags in the seats.

I want to say there's more open room on the drivers side because that's where the JBL amp goes on the upper trim cars. I think the passenger side has more room dedicated to the rear seat floor vents. But if your dashcam battery isn't that big, it might not be a problem.

 

The OCS works using four strain gauges near the four supported corners of the seat, and is used to make sure the airbag will inflate with the right amount of force safe for an adult male, adult female, or child detected as being there, and in what position on the seat.

Because the seat rail bolt holes and mounting locations aren't, like, precision machined, having them off and retightening them is pretty sure to change the readings of those strain gauges. You don't necessarily find out you have 'issues' or 'no issues' by looking for codes. If you get codes, that's great, 'cause it means you know about an issue right away. Otherwise you find out from what happens to the passenger when the airbag goes off.

Best to just go ahead and recalibrate after the work.