1997 k1500 Alpine cdm-7874 porche 911. I also bought a bluetooth receiver that plugs into the m-bus port works flawlessly

[k1500 97]

Update on this alpine if you buy that adapter you can do phone calls thru your truck speakers

 

[ChRoNo16]

does the adapter come with a mic?

 

[k1500 97]

does the adapter come with a mic?

That one specifically dose not. But they do make one with a mic. I just talk through the phone and receive the call through the truck speakers.