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Why is the radio reception so bad? - The problems users met - ATOTO Android Car Stereo Entertaiment system - SHENZHEN AOTULE ELECTRONICS TECH CO.,LTD

Why is the radio reception so bad?

Reasons for this problem:

No.1  The radio signal is interfered by the same frequency from other device.
No.2 There is no power supply to original car radio antenna.

Possible solutions:

No.1 Find the interference source and stop it.
No.2 Check radio ANT control wire connection and reconnect it.