Could u please vocally warn for radars regardless if we above the speed limit or not?

2 reasons:
1 - In the UK there's variable speed limit on motorways. Normal speed is 70mph but if they set 60 or 50 there's no voice warning stating there's a radar 0.3 miles away as we below the normal speed. If the voice warns for radars regardless of speed, would be helpful in those situations
2 - on a 20 or 30mph road, 0.3 miles away from a radar we might be below the speed limit but if we distracted, with such low speed limits we easily pass the tolerance in a short distance.
Thank u Waze for keeping my drivers license clean