Hi gurus, I need help regarding my Nakamichi headrest monitors. Both units have static lines and distorted videos whenever the engine is turned on. If the engine is turned off static lines are not that visible but i still get some distorted videos randomly. I had my units checked by two installers already and they couldn't fix the problem. Can anyone suggest good car electronics installers in the south area especially Las - Pinas??

Any tips and advice would help Thank You Gurus!