[B112]

I just did mine, I know a couple answers.

A couple of questions and things I haven't figured out.
1) I connected the GPS antenna. Do I really need that? Was thinking that the phone would take care of that. .
.
Needed for Android auto

2) The microphone. Is there a way to use the existing one that came with the car? I like to be minimal and get rid the the stubby one that's now on top of my steering wheel shroud. I have no idea how to tap into this and connect it to the radio. Maybe it already is? I don't know, but I connected the Kenwood one anyways..

You need the Kenwood one.

3) Is there an adapter for the XM antenna so I can plug it directly into the XM tuner? Again, want to get rid of redundancy. I think I found it as it was one of the few connectors that don't have a home with this replacement radio system. However, after the connector housing, the coax pin plug doesn't engage far enough into the receptacle.

Call crutchfield and ask for adapter piece, I used 1 for a Rav 4 Chevy might have one.

4) Apply car play works wireless and wired. Android auto only works wired (moto g7). Maybe I need a more expensive phone.
>It sucks that you cannot connect them both at the same time and just switch between them. I have an apple work phone and a android personal phone.
>It also sucks that when these apps are engaged it eliminates the option to stream bluetooth with the other phone. It works sometimes, but needs a weird sequence of connecting bluetooth and phones.
>It double sucks that when bluetooth is disconnected, you cannot have both phones connected at the same time. Basically if I am doing carplay or android auto with one phone, I cannot take a handsfree call with the other.

5) Screen mirroring does't work. Can't figure it out with my Moto G7. This was the biggest reason I bought the unit.

Thinking both of these are your phone check Android version info.

6) Can you make it so that when you push the camera view button on the radio, it will show the rear view camera? Would be cool to watch behind me sometimes when I am driving.

Not w. Factory cam. It gets power from reverse light. If you go from reverse to drive it will stay on for a min but then go off. My front cam is always on. It's hard wired into power off stereo (had power on cam RCA). No ground was needed. Just drop camera in hood latch and double side tape.