If your stock firmware is buggy, the car audio community (notably on XDA Forums ) often creates custom ROMs. These are "better" because they allow for:
Frequently releases updates specifically for UIS7862 systems to optimize the OS and fix hardware-specific bugs. uis7862 firmware better
Newer firmware optimizes the 8-core CPU and 4GB+ RAM, ensuring apps like Spotify and Waze boot instantly and multitask smoothly. If your stock firmware is buggy, the car