I use Shure se215 IEMs inside my helmet together with a Cardo Packtalk (which includes a microphone mounted inside my helmet).

The audio setup is not the problem.

The problem is when I say "Hey Siri, cancel route guidance," it will say something like "…You must unlock your iPhone to do that."

The entire point is that I can't take my gloves off, get out my phone, and unlock it, at speed, on a motorcycle.