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Old 02-09-2008, 02:54 PM
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Join Date: Jun 2001
Posts: 26
Which wire for 1990 R129 radio speed control?

I seem to be failing in my search skills. I can't seem to find a post with the color coding of the speed control wire for a 1990 R129 radio (cassette, no cd).

I've installed an after market blaupunkt radio. It works great except I don't have the speed sense wire hooked up. Unlike power, ground, and speakers, it is not easy to probe for the speed wire.

I'd appreciate any help. Other than some knowledgeable soul, I'll never find it myself. Alldata wasn't useful.
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Old 02-09-2008, 05:56 PM
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Join Date: May 2001
Location: Las Vegas, Atlanta
Posts: 669
I think you will find a green wire with black stripe is the speed signal to the radio.
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Old 02-09-2008, 09:33 PM
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Join Date: Jun 2001
Posts: 26
I've now got the auto volume control working with my blaupunkt radio. I'd never gotten it right without the help. Many thanks.
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