I think the cars/systems designed for wireless AA also have wireless charging, so you just place your phone on the built-in charging pad/console area. It would be nice to just place the phone down and have everything work wireless but wireless charging doesn't seem to be widely supported by car manufacturers or Android phone makers.
"Nokia first adopted Qi in its Lumia 920 phone in 2012, and the Google/LG Nexus 4 followed later that year. Toyota began offering a Qi charging cradle as a factory option on its 2013 Avalon Limited, with Ssangyong the second car manufacturer to offer a Qi option, also in 2013.
In 2015, a survey found that 76% of people surveyed in the United States, United Kingdom, and China were aware of wireless charging (an increase from 36% the previous year), and 20% were using it * however only 16% of those using it were using it daily. Furniture retailer IKEA introduced lamps and tables with integrated wireless chargers for sale in 2015, and the Lexus NX gained an optional Qi charging pad in the center console. An estimated 120 million wirelessly charging phones were sold that year, notably the Samsung Galaxy S6, which supported both Qi and the competing Power Matters Alliance standards. However, the existence of several competing wireless charging standards was still seen as a barrier to adoption.
By early 2017, Qi had displaced the competing standards, with no new products featuring Rezence. On September 12, 2017, Apple Inc. announced that their new smartphones, the iPhone 8, iPhone 8 Plus, and the iPhone X, will support the Qi standard. Apple also announced plans to expand the standard with a new protocol called AirPower."
Sounds like Android phone makers and Toyota/Lexus were early adopters. Wireless charging for this specific purpose just hasn't been a priority for most people.
I wonder if a case for Near-Field Communication (NFC) could be made to enable wireless AA/ACP.