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Alarm beeping for aftermarket stereo


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Hello,

after reading message related http://www.renntech.org/forums/topic/28530-03-996-c4s-stereo-head-unit-swap-out/?hl=beep#entry159143

 

"if you are replacing the Porsche head unit, don't forget to disconnect the wire running to the cage and to insulate it. Otherwise the alarm system will detect and error and beep the horn every time you lock the car!"

 

Some one please help what exactly I have to do here..I am trying to swap out my CDR-23 in my 2003 Porsche 911 C4S

 

Many thanks in advance

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