Let’s assume you have downloaded a file named n7_theme_NEXUS_dark.apk or .zip . Here is how to get it running on your Android head unit (version 8.0 to 13).

If possible, run the downloaded APK through an online malware scanner like VirusTotal before running it on your dashboard.

Tap and wait for the file to save to your device's internal storage. Step 3: Install the File Open your local File Manager app. Navigate to the Downloads folder. Tap on the downloaded n7-theme-car-launcher.apk file. Select Install and grant any requested permissions. Step 4: Apply the Theme Launch your primary Car Launcher application.