Does anyone have the circuit diagram for the radio stalk control

I want to make a circuit to interface my Goodmans Radio to the stalk control. does anyone have the circuit infomation for the control - it's apparently an RM-X4S configuration.
regards,
Alapal
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.