ディスプレイオーディオなども作っているATOTOのAndroidAuto/CarPalyデバイス。AndroidAutoかCarPlayに対応したカーナビやディスプレイオーディオにUSBケーブルで接続し、スマホの代わりに使うものです。スマホをいちいちケーブルに繋ぐ必要がなくなります。最近はワイヤレスのAndroidAuto対応のもありますが、動作がイマイチ不安定なのと、スマホ側でテザリングさせられないとかあるので、よく使う人はこれみたいな専用デバイスを車に乗せっぱなしにするのがオススメ。スマホのテザリングに接続できるようWi-Fi設定するだけです。4GのSIMもささりますが、あまりそれをする人はいなさそう。繋ぎ方の説明書が入っているだけです。Type-AのUSBポートの場合、電源供給専用も使って2ポートから給電する必要があります。A-to-Cケーブルがめちゃくちゃ短いので、必要ならば100円ショップなどで長いのを用意する必要があるでしょう。樹脂筐体で高級感はありませんが、青色のLEDはいい感じで光ります。2GBのメモリは心許ない気がしますが、ナビアプリと音楽ストリーミングアプリの同時起動くらいなら問題なしです。リーズナブルな価格でいいですね。

I tested the ATOTOOUT CarWave CB4 (AI Box) in a car that already supports wired CarPlay/Android Auto. Setup was simple: plug into the USB port you normally use for CarPlay, pair once, and it auto-connects on every start. Boot and reconnection are quick, and I didn’t run into random dropouts on calls, maps, or music.What makes this box stand out is flexibility. Besides converting to wireless CarPlay/Android Auto, it runs Android apps so you can use YouTube/Prime Video/Spotify when parked. The HDMI output is genuinely useful—I mirrored video to a rear screen for the kids while keeping maps on the main display. Dual-band Wi-Fi and Bluetooth kept things stable, and the compact puck stays cool even on longer drives.The included mini OBD-II adapter is a nice bonus. Paired over Bluetooth, it pulled basic codes and live data—handy for diagnosing a check-engine light without visiting a shop. Storage is 2GB RAM/16GB, which is fine for car use, and you can expand via USB/microSD if you keep lots of media or apps. The on-device app store (“Andgest”) made side-loading unnecessary for me.Notes on compatibility: This type of box requires a head unit with wired CarPlay or Android Auto. The brand notes exceptions (e.g., BMW series and many Subaru units), and some Nissan/Toyota/Lexus/VW models may need extra USB power—check your car before buying to avoid frustration.Wish list: a clearer quick-start guide, a longer USB-C cable in the box, and more internal storage would be welcome. The “AI assistant” works, but it’s not the reason to buy.Bottom line: If you want reliable wireless CarPlay/Android Auto plus apps and HDMI out in one tidy box, this delivers. Stable connection, easy setup, and the bundled OBD-II reader make it feel worth the price.ProsRock-solid wireless CarPlay/Android AutoHDMI out for rear screensBonus Bluetooth OBD-II scannerDual Wi-Fi/Bluetooth; stays coolCons16GB storage is tightManual/cabling could be better

車の純正SDAに手持ちのスマホをワイヤレス接続することが出来ます。本体にHDMI出力（ミニ端子）が付いており便利です。例えば、後席用のモニターに動画再生。フロントのSDAにはナビアプリを表示といった使い方が出来ます。Androidスマホをお持ちの方へ注意点。初期設定の際、本体の小さなボタン（CP/AA切替)を長押ししてAndroidAuto優先に切り替えてください。（工場出荷時はCarPlay優先の設定になっています。iPhoneを接続する方は問題ありません）

基本はcarplayやAndroidAutoのワイヤレス化をしてくれる商品ですが、本体にUSB接続ポートを内臓しているので、家でUSBメモリーに落としておいた動画をモニターで再生が可能なのがうれしいですね。普段はcarplayで長距離ドライブ時は動画の再生みたいな使い方もできて重宝します。もう少し小型化されるとなおいいかな。

I tested the ATOTOOUT CarWave CB4 (AI Box) in a car that already supports wired CarPlay/Android Auto. Setup was simple: plug into the USB port you normally use for CarPlay, pair once, and it auto-connects on every start. Boot and reconnection are quick, and I didn’t run into random dropouts on calls, maps, or music.What makes this box stand out is flexibility. Besides converting to wireless CarPlay/Android Auto, it runs Android apps so you can use YouTube/Prime Video/Spotify when parked. The HDMI output is genuinely useful—I mirrored video to a rear screen for the kids while keeping maps on the main display. Dual-band Wi-Fi and Bluetooth kept things stable, and the compact puck stays cool even on longer drives.The included mini OBD-II adapter is a nice bonus. Paired over Bluetooth, it pulled basic codes and live data—handy for diagnosing a check-engine light without visiting a shop. Storage is 2GB RAM/16GB, which is fine for car use, and you can expand via USB/microSD if you keep lots of media or apps. The on-device app store (“Andgest”) made side-loading unnecessary for me.Notes on compatibility: This type of box requires a head unit with wired CarPlay or Android Auto. The brand notes exceptions (e.g., BMW series and many Subaru units), and some Nissan/Toyota/Lexus/VW models may need extra USB power—check your car before buying to avoid frustration.Wish list: a clearer quick-start guide, a longer USB-C cable in the box, and more internal storage would be welcome. The “AI assistant” works, but it’s not the reason to buy.Bottom line: If you want reliable wireless CarPlay/Android Auto plus apps and HDMI out in one tidy box, this delivers. Stable connection, easy setup, and the bundled OBD-II reader make it feel worth the price.ProsRock-solid wireless CarPlay/Android AutoHDMI out for rear screensBonus Bluetooth OBD-II scannerDual Wi-Fi/Bluetooth; stays coolCons16GB storage is tightManual/cabling could be better