add this FILE to the firmware when installing
2) Turn on accessories power --> Turn on the A/C --> Switch off accessories --> Remove OEM head unit and replace with T'Eyes head unit --> Turn on accessories and test A/CIMPORANT: YOU MUST SET THE A/C TEMP MANUALLY ON THE ORIGINAL HEAD UNIT BEFORE REMOVAL
If you find that it is impossible to get the OEM rear camera working
If your head unit looks like this
Toyota Camry 5 XV 30 (2001-2006) GMC add this FILE to theSPECIFICATIONS Brand Name: T'EYES Certification: CE,EAC Digital Media Format: Mp3,MP4,WMA,JPEG Din: One Din Display Size: 9" For Vehicle Brands Model: TOYOTA Hign concerned Chemical: None Item Weight: 2 OSD Language: Chinese (Simplified),Chinese (Traditional),Russian,English Operating System: Android Special Features: wifi function,Support steering wheel control,Built in GPS,Mobile Phone,MP3 players Voltage: 12 V