ALP HiFi/ BlueTooth/ vs default controller question

[BestRadarDetectors]

I couldn't find a FAQ on this and am confused on the various options.

If you buy the standard ALP system, does it still connect to a speaker for alerts?

if you buy the bluetooth add-on, and don't have a phone connected, does the system still function? Can alerts also go through a speaker in the car/ and does the standard controller still work).

If you buy the hifi system, you can't use the bluetooth module? (is that so?)

Thanks

Standard Controller has a built in speaker in the controller which gives you different tones.
HiFi Controller is a different controller (Looks similiar) but has a wire that comes out of it that attaches to external speaker. (All Alerts and menu's will have voices)
BT Module - Replaces the Standard or HiFi Controller and you essentially use your Apple or Android Smartphone to control your ALP. You get voices though the App and if your phone supports it you can pass the BT connection to your vehicle so alerts come from the vehicle.

At this time since all controllers connect to the same controller port only one option can be used. Some people use a manual switch box and switch between 2 options.