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Originally Posted by KiwiJochen
Relay is a must, because the TV tuner uses a input that is connected to ground to activate the reverse cam.
So the relay performs the function of activating the RevCam input.
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ya i noticed the same from other threads but the seller i bought the RCA cable from said that i need only to connect into PIN 17 on the blue connector to get the ground.. so since PIN 17 provides ground why would i need a relay unless its a power stablity issue 
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2008 BMW X5 4.8i
Navigation
Bluetooth
Rear Entertainment
Aerodynamic kit
DVD, CD, TV
Projection
Last edited by ashrafkh; 04-07-2009 at 06:31 AM.
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