Curious about the 2018 Q5 remote start system

Hey everyone, I’m looking into the remote start system for the 2018 Q5. I know you have to leave a key with no battery in a special case inside the car. My main question is if you leave the car unlocked, would that key (even without a battery) be enough for a thief to start the car using the start button?

If they find it, yeah, definitely could be an issue.

You should hide that box somewhere hard to get to. Just a thought.

You could put the key in a faraday cage, which is a conductive metal box. That way, you’re more secure against a relay attack.

There’s no antenna involved in this one. It just works by pressing lock three times. I’m looking for it to work from inside my house.