AM radio to Bluetooth.. or other ideas.

I read some posts where the guts of the stock radio were changed out to Bluetooth set-up... Does anyone have instructions for this conversion... or some other ideas..? I'd like to keep the factory radio and have it actually function too, as much as possible.

Thanks..!
Most Bluetooth adapters that I'm aware of are only compatible with FM radios, so my first choice if you have a functional AM radio would be to hook an FM convertor to it, like the one mentioned above. I had one that I mounted in the area formerly occupied by the ashtray in the dash. Blended right in. Then you could use that to tune in an FM Bluetooth adapter.
If you're not interested in FM at all, then there's many articles available about adding an auxiliary input to a stock AM radio- then you just use a plug-in Bluetooth adapter in your new auxiliary jack, or plug your phone directly into it for playback.
Some sites to get you started:
TECH: How to add an AUX input to your stock Radio
Adding Auxiliary Input (for an Mp3 Player) to an Old AM Truck Radio
SpridgetGuru.com-Tech Index-Adding An Aux In to A Vintage Radio