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Need access to parking brake wire


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I am in the process of installing a Nav unit in my 1999 996 C2. Thanks to the great folks on this board, I have found the speed signal wire and the reverse wire required to install the Nav unit. The last missing piece of the pie is the parking brake power wire. Can someone suggest where I can tap this puppy?

Thanks in advance

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This is a new one.

The yellow line is to the connector for the 2 wires to the hand brake switch.

Why does a navigation unit need to know if the hand brake is on or off?

It is a Pioneer Nav unit that is coupled with their P6500 DVD Receiver. I am still figuring out the features of this unit so my best response is that I believe Pioneer doesn't want DVD video presented on the video screen while the car is moving - it will only play with the parking brake on.

Thanks for the picture. Is it hard to remove all the interior housing pieces to get that switch? I was looking at that area tonight and I can't quite figure out how to "attack" it.

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  • Moderators

Now it makes sense. Like why we cannot have a TV in a car the driver can see while the car is moving - or the driver may be distracted. Or, why you can drive with one hand (in California) and talk on a cell phone, shave, and put makeup on with the other hand.

You have to remove the center console to get to the switch.

Why can't you trick the navigation unit into thinking the car is stopped and the hand brake on. What kind of signal does the unit want to see?

With the hand brake pulled up and the key on you get 12 volts to the instrument cluster warning light. It is just an on/off switch. There are many places to find 12 volts on any car.

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Now it makes sense.  Like why we cannot have a TV in a car the driver can see while the car is moving - or the driver may be distracted.  Or, why you can drive with one hand (in California) and talk on a cell phone, shave, and put makeup on with the other hand.

You have to remove the center console to get to the switch.

Why can't you trick the navigation unit into thinking the car is stopped and the hand brake on.  What kind of signal does the unit want to see?

With the hand brake pulled up and the key on you get 12 volts to the instrument cluster warning light.  It is just an on/off switch.  There are many places to find 12 volts on any car.

I am now seriously thinking of attaching, as you suggest, to some other 12 volt source. Thanks for the great idea.

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  • 2 years later...
Now it makes sense.  Like why we cannot have a TV in a car the driver can see while the car is moving - or the driver may be distracted.  Or, why you can drive with one hand (in California) and talk on a cell phone, shave, and put makeup on with the other hand.

You have to remove the center console to get to the switch.

Why can't you trick the navigation unit into thinking the car is stopped and the hand brake on.  What kind of signal does the unit want to see?

With the hand brake pulled up and the key on you get 12 volts to the instrument cluster warning light.  It is just an on/off switch.  There are many places to find 12 volts on any car.

I am now seriously thinking of attaching, as you suggest, to some other 12 volt source. Thanks for the great idea.

Last post December 04...hmmm hope it's still worth a shot.... How did this turn out?

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