Bear with me because on my phone browser I can't find a search function. Where would I find the radio code when I have to reset that? I don't see it around. Would it be on a card or a little tag we're in a booklet? And can I just go to the dealer and have them tell me what it is?
thanks
Mike.

 

You didn't mention what model year your RDX is, and if it has the base radio or the navigation system. I also couldn't find it in your profile.

So this information may not apply to you, since it is from a 2016 RDX. I have included the information for both the base and navigation systems

To summarize this information, if you are re-installing the radio into the same vehicle, simply press and hold the power button.

PS: Updating your forum profile with your model information will make it easier to provide you with more pertinent information. I could have looked up your specific owners manual in the same amount of time it took to look up my own manual.