Hi HOTGAZ,
Thanks for contacting Apple Support Communities!
We understand that you no longer hear spoken directions in Maps via CarPlay.
You can adjust the settings for spoken directions in Maps on your iPhone via the audio button within Maps or Settings. You can learn more here: Change settings for spoken directions in Maps on iPhone - Apple Support
"Turn spoken directions on or off
On the map, tap the audio button (for example,
), then choose an option.
Button
Description

All directions are spoken.

Only driving alerts are spoken.

No directions are spoken."
You can also verify that you have precise location enabled for Maps: View maps on iPhone - Apple Support
"Allow Maps to use your precise location
To find your location and provide accurate directions, iPhone must be connected to the internet, and Precise Location must be on.
- If Maps displays a message that Location Services is off: Tap the message, tap Turn On in Settings, then turn on Location Services.
- If Maps displays a message that Precise Location is off: Tap the message, tap Turn On in Settings, tap Location, then turn on Precise Location.
Cellular data rates may apply (see View or change cellular data settings on iPhone).
Note: To obtain useful location-related information in Maps, leave Significant Locations turned on in Settings
> Privacy & Security > Location Services > System Services."
We hope this helps you.
Cheers!