Using "Spare" Button on Steering Wheel E Class
Anyone know how to access the wiring for the "Spare"" button "Telephone Logo" on the steering wheel of E Class.
I like most people do not have a MB Cellphone fitted.
The toggle button should be capable of being used for something else -
E.G. One shot wiper, flash headlamp, clean headlamps. Etc. Etc.
If I could access the wiring to this the use of a latching relay or a momentary relay should allow a choice of uses for it.
Any have any info.