Important If you have any questions about the car stereo installation, you can follow the below steps to reach us. Step 1: Click "Speedroad"Step 2: Click "Ask question"Step 3: Please send us pictures or videos of the technical or installation questions you metThen we will get back to you soon. We have to admit that the installation of all vehicle wires is complex and difficult. Whether it is a vehicle repair shop or a personal installation, it takes a lot of time to study how to connect the wires. Therefore, unprofessional and wrong wiring methods in the installation process can easily lead to problems such as no work, no sound, CarPlay disconnection, etc. In order to provide better service, we provide professional information consultation and after-installation service guidance, including one-to-one engineer service for each customer. With our professional guidance, you can avoid 99% of the problems. Please do not return directly before asking for help. Specifications: 5G WIFI(2.4Hz+5Hz) : Faster transmission and less interference.Mirroring Link/Airplay: Android/IOSReversing output: 1080P AHD/CVBSOperating System: Andriod 12.0 + Bluetooth 5.0Memory:2GB (RAM)+ 64GB (ROM)Resolution: 1280*720Screen Size: 10.2 inch QLED Capacitive touch screenAMP Control & DSP: (EQ/Surround/Zone/Sound/Bass Filter) 48 Band-EQ +Speed Compensated Volume+Subwoof output+Amplifier output Car Stereo Radio WiFi Function: Support WiFi function, you can connect to WiFi hotspots to surf the Internet. Browsing the websites, forums and downloading more of your favorite apps from Google Play Store. Such as Google Map, YouTube, Facebook, Tik Tok etc., let you enjoy your driving trip! Suitable for Toyota Highlander 2014-2019 . Wireless Carplay&Android Auto 1.How do I use Wireless CarPlay/Android Auto? .Steps1: Turn on the Bluetooth function on iPhone and Car Stereo, and then search to connect them to each other. .Steps2: Use Bluetooth to connect the mobile phone and car radio, and enter the password “0000” .Steps3: Enter the car Stereo application "T-Link" and select CarPlay on iPhone 2.How to use Wired Android auto? .Steps1: Please use the 6-pin USB adapter. after that, please installing "android auto" Apk into your android phone (some Android phones support built in Android Auto ). .Steps2: Connect to your mobile phone and radio through the original Android USB cable. .Steps3: Enter the Application "T-Link" and wait for it to automatically connect. How to connect the AHD 1080P Rear Camera ? Car With Canbus Protocol Box Find the brown rear camera control cable in the power cord (Not necessarily brown, but usually the third from left to right) as shown in the figure: remove the outer plastic skin (Don’t cut it off.) and connect it to the blue cable on the reverse camera. Then wire all the other cables as per the below diagram (Refer to our explanatory image). Car Without CanBus Protocol Box Find the brown rear camera control cable in the power cord (Not necessarily brown, but usually the third from left to right) as shown in the figure: remove the outer plastic skin (Don’t cut it off.) and connect it to the blue cable on the reverse camera. Connect the red wire of camera to the positive pole of reversing light (which provides power for the reversing camera), and the black wire is insulated and isolated. Other positions are connected as shown in the figure Split Screen+Wireless & Wired Mirroring-Link This radio supports split screen. With this function, you can use two apps at the same time. How to operate the Split Screen? Click the page to enter the running application interface .Long press and Drag the APPlication to both sides of the Screen wireless & wired Mirror-Link： Attention: (Some video streaming services (Netflix, AMZ Prime, Disney+, etc.) may not support Mirror-Link.) How to use the Wireless/wired Airplay Mirroring? Click on the T-Link app, a blue function switch button will be displayed on the bottom right corner, which allows you to select wired or wireless Mirroring for iPhone or Android. Wired iPhone Airplay/Android Mirroring : USB wired Mirroring/Airplay. You only need to connect the original power cord of your phone (IOS/Android) to the 4-pin USB interface, and you can achieve wired Mirroring/AirplayiPhone Wireless Airplay: Open the phone’s hot-spot, connect the car stereo to it, and click iPhone Airplay .Android wireless Mirroring: You need to download a Z-link APK. Connect to Bluetooth, open the phone hot-spot, click on Z-link, and then click on” enable mirroring”.