Contact photos, synchronization

Hello together, I have mostly connected my iPhone via Bluetooth. The contacts and call lists are also displayed industriously synchronized. Two questions: 1. The vehicle also has a contact memory. Is there a way to synchronize this “offline” memory, or can one really only store contacts that one has manually registered all? 2. Many of my contacts on the mobile phone have saved a contact image. However, this is only with currently one person (all I have Not checked) also in the display of the Spacetourer at Bluetooth contact or in the call list. All others are not displayed. Also with this one contact it has been displayed very rarely so far. Since today I have a new telematics device (see https://www.motor-talk.de/…/…-neue-navdab-generation-t6347446.html). Since now here already looks quite different, I checked the pictures immediately: also here this one picture works immediately – the others do not. => How Is this with you? Are pictures displayed? What requirements does the image have to meet? Is there a question of resolution?!