Comfort and Convenience
When carrying a laptop bag and a grocery tote on the same trip, some people want the cabin quieter so they can check a list aloud, while others prefer more background sound during the short waits between shops.
Safety and Driver Assistance
Before a round of parcel collections, it helps to know how the washer and demister controls operate while still parked, so those settings can be chosen in advance rather than hunted for on a busy access road.
Multimedia and Connectivity
If the phone can be charged during the outing, that helps keep a shopping list available across several stops. Calls and music remain separate needs.