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Old 10-05-2001, 12:47 AM
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JimF JimF is offline
'94 S500: only 793 sold!
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,925
. . "failure to communicate"

I don't know if the mute wire was a ground wire or a hot wire.
I answered your question. Since the Nokia interfaced ok with the Becker (ie muted the radio when the phone was active), it had to be ground when active. That's because the Becker needed a "ground" to mute. Is that clearer?

For the Nak, your relay idea using the Nokia's mute line to provide ground to energize the relay, thereby removing power from the Nak. Do this by wiring the Nak's power through the normally closed contacts of the relay. Understand?
Regards . . . . JimF
'94 S500 Cpe

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Last edited by JimF; 10-05-2001 at 10:35 AM.
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