I find that I am always messing with the radio volume between stop lights and high speed drving. I want to design a device with a small microphone which will automatically adjust the volume of the radio based on noise levels around the car.

In order to do this I need information regarding the remote volume control. I understand there is only one wire that controls the remote funtions (pin 3, green/red) to the head. Does anyone know the signal used on this wire to simulate a volume up or down command?

Mark

 

If you were to decide to change head units, look for ones by Pioneer with ASL (Automatic Sound Lowering, I think). It automatically decreases/increases the volume with the speed of the car. Neat feature, saves a lot of fumbling with the volume!

 

My neighbors would probably appreciate one of those Sondra

 

Additionally, Blaupunkt has the Casablanca, which taps into the car's Vehicle Speed Sensor. It sells for about $300 (**MUCH** less on eBay). They have also just released the San Francisco, which uses a microphone to control not only volume, but more importantly for a convertible, but to automatically adjust the 7band eq. It retails for about $400.

I found out about the SanFran in Crutchfield's new catalog. It isn't on theirs or Blau's US site, but it is on their German site (w/ English translation): http://www.blaupunkt.de/asp/index.asp?Spra...ic=SanFrancisco

Hey cthree--How 'bout an audio forum at the new place?

[This message has been edited by Gregg (edited January 06, 2001).]

 

that would be real handy I too have thought about it.
They have had such devices on the cruiser bikes for a long time now.

 

Y2k,

I'm in the middle of rewriting my research code this weekend, but send me a reminder and I'll try and add the schematic to my webpage in the next few days.

 

That would be really neat if you could pull it off.

 

check out this page.. it tells the resistances. http://www.s2000.org.uk/info/dash.htm

David

 

Someone built a "speed-o-sound" kit for Miata a number of years ago (it's no longer available) and I've had it on my 90 for about 8 years. Really great, even has a 2 position switch for top up or down. Hope you can come up with something for S2k.

Andrew