Dashcam Laws and Expectation of Privacy

My question involves civil rights in the State of: Ohio

Hello,

I understand that Ohio is a one-party consent state when it comes to recording oral conversations, however I want some clarification. First off, does my car constitute a place where privacy is a reasonable expectation? If I have a camera recording with audio in my vehicle, am I required to inform a passenger? In any situation, in-car or otherwise, are secret recordings allowed if I'm one of the parties in the conversation?

Second, what are the laws regarding dashcams during police traffic stops/checkpoints? I know that video should be ok, but what about the audio? Do I have to inform the officer of the camera and the audio recording? I think recording the interaction should be ok in Ohio, but it doesn't hurt to be reassured; especially when some states (like MA and IL) historically have had 'problems' regarding these situations.

I'd appreciate it, if possible, to highlight the differences in laws regarding video recordings vs audio recordings for my questions above.

Thanks.

Privacy? I expect that any passenger in your car would be able to tell that you were sitting in the car, driving it and conversing with them, such that it would be extremely difficult for them to argue that they didn't know that somebody else was present or could hear their words. What you are apt to discover if you record your friends then try to use the recording against them at a later date, in or out of court, is that they become ex-friends.

The law of recording police officers has become less contentious, with some states having ruled in favor of public recording and little evidence that states are continuing to try to prosecute individuals for recording interactions between the police and members of the public or themselves; but the law is not entirely settled, so nobody is going to be able to promise you what might happen in a state where making an audio recording of such an encounter remains nominally unlawful.