I bought a SPARCO wheel from http://www.ltbmotorsports.com << shameless plug >> and was wondering if I could hook up of the buttons on the wheel as a "push to talk" radio button. FYI, the button simply has 2 wires going to it.

 

I wanted to do the same but I have a 3 wire button for my radio so I gave up trying to figure it out.

 

Be creative and setup a solenoid to press ure 3 wire button. when you press on the 2 wire button on the steering wheel.

 

thats weight

Im sure one wire is just a ground or something. never wanted to pull apart the button tho.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GBRacing &raquo;</TD></TR><TR><TD CLASS="quote">I bought a SPARCO wheel from http://www.ltbmotorsports.com &lt;&lt; shameless plug &gt;&gt; and was wondering if I could hook up of the buttons on the wheel as a "push to talk" radio button. FYI, the button simply has 2 wires going to it.
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Yes, this is easy. We did this before.

 

what radio you use andrie and why arent you spilling the beans?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HapaHaole &raquo;</TD></TR><TR><TD CLASS="quote">what radio you use andrie and why arent you spilling the beans?</TD></TR></TABLE>

I use cheap radio shack UHF business band. They used to sell a 5 watts one. But it is no longer available. It was cheap too. I bought mine for under $100 per radio.

I don't use a horn button anymore. Instead, I bought a small temporary switch from Radio Shack, use an old Keyboard coil cord with 6 conductor and wired up the temporary switch and my MyChron display all together.

 

So does anyone have the schematics or know what the 3 wires are for?

 

I thought about this a little. If its 3 wires, chances are two are connected when the button is just sitting there, probably closing a circuit, and when the button is depressed, one wire connects to the 3rd wire closing a different circuit. This can be simulated with a relay and the 2 wire steering wheel button. solenoid, common EDO!

you can test my theory with a multimeter at your radio push to talk connector. FYI I use Sampson radios (if I remember the name correctly) I think its all the same sht tho.

 

Shawn,

if you use Sampson Radio, the push to talk button should be 2 wires. I used their wiring harness before, and still use parts of it.

 

if it's 3 wires to a button one is ground and 2 are power when the button is depressed it makes a connection between the 2 power wires one of which is comming and the other going

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by e9 &raquo;</TD></TR><TR><TD CLASS="quote">if it's 3 wires to a button one is ground and 2 are power when the button is depressed it makes a connection between the 2 power wires one of which is comming and the other going</TD></TR></TABLE>

If that is it, that's easy enough!

 

YES-that is what I did. Took the leads and connected them to the PTT coily cord. Works great. Just remember to keep your fingers away from the buttons Our wheeel is a Sparco Flash 5, btw from OGRacing