The iPhone lists three cluster contents in its /info altScreenURLs: the
map, an instruction (turn) card and "instrumentcluster", which draws the
map with the turn card on it. A new "Dashboard shows" choice picks the
one DiPlay asks for as the alt screen's initial URL; the map stays the
default. On the tested car the turn card fit the Small screen navi
window well and streamed 0–5 kbit/s against 0.3–4 Mbit/s for the map.
The iPhone lays out the map, the car marker and the card inside the
same safe area, so the existing position settings move whichever is
shown; they are now labelled "Car marker" or "Turn card" to match.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
