Why there are few stations, big notice, or void stations?
Maybe the radio antenna has not been inserted, and the environment has great effect, such as there are much radio single interference or in the many tall building concentrated or remote district.
Why the DVD disk cannot play?
The disk is put in the wrong way round, scraped or too dirty. Suggest you to change the side of disk, insert it with sourcing side down, change into the good disk or clean it and wipe up by soft close.Sometimes it is because you play the disk the unit can not play and you need to check whether the type of disk belongs to the ones can be played.
Why Disc cannot be normal?
Disc version of the rating over the lock function of the level set, disc version of the area code is not compatible, the disc up against.Solutions: Adjustment locks function to set rating, use the machine compatible with the disc, and insert the disc to keep the disc label side up.
Why the Rearview Camera has no image?
The camera has not been installed, the rearview control line has not been connected or the camera connects with the unit in wrong way.
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