Sony A6700 remote control multiple cameras for shooting photo or film?

[Darma]

Hi everyone, I've gotten a couple or 6700 that i want to mount on a car for filming drives.
my big problem is that i cant find a way to remote trigger them all with one remote.

on top of that, when I bundle the remotes together and make a little claw leaver to press them at once, The bluetooth signal is very unreliable through the car, (probably the A, b or C pillar are blocking the signal.

I know old school radio would work but, theres no connection for a flash receiver to trigger the shoot.
and i dont know of anything that can physically wire all the cameras to a single trigger.

understand its perhaps a niche use case, but hopping theres someone out there whos had to set up a capture studio with multi cams, or done driving shoots needing multiple cameras.

any suggestions?

thanks everyone

 

[Richard A]

What were you using to connect to them via Bluetooth?

 

[Darma]

What were you using to connect to them via Bluetooth?

the official sony bluetooth remote

https://www.sony.com.au/electronics/interchangeable-lens-cameras-tripods-remotes/rmt-p1bt

but of course that can only connect to 1 camera, So I had alot of the remotes paired to their respective cameras.
Put them into a 3d printed jig that when squeezed, would push down on the buttons.

I thought it was a great idea, but then the Bluetooth signal doesnt go through the b pillar.

And this isn't a remote issue, Bluetooth signals do weaken significantly through thick steal frames,
always had the same issue with Bluetooth mouse, where the dongle was at the back of my case underneath an electric standing desk. Signal would drop sporadically.

So i guess its a 2 option solution.. at a minimum, if there was a remote that could trigger multiple cameras at once, and i would just need to have clear line of sight from the cameras to the controller.

or a wired system that somehow hooked up all the cameras.

Im very surprised that nothing exists for these entry level pro cameras.