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. 1. When your car radio with canbus, pls connect your car radio with rear camera in this way.

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