I have a Costco camera system. After 4 years, wavy lines appeared on the pictures and I decided the problem was in the dashcam box. After some research online, some have suggested that the problem is with the power supply. When I checked mine, it actually smelled like burning electricity and was leaking an oily substance. On the manufacturer's website, a new one costs about $80. Found it, it was quick and easy to change and after 3 months of use I'm still very happy with this purchase! Images and system are like new again!
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