DVR ADAS is a very useful feature for H53 devices.  Here is instruction for installing H53 DVR.  DVR ADAS is a very useful feature for H53 devices.  Here is instruction for installing H53 DVR. 

1. When your car radio with canbus, pls connect your car radio with rear camera in this way.   2. When your car radio without canbus, pls connect your car radio with rear camera in this way.  3. Here is video for connecting.   1. When your car radio with canbus, pls connect your car radio with rear camera in this way.   2. When your car radio without canbus, pls connect your car radio with rear camera in this way.  3. Here is video for connecting.  

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