I posted this in Car Audio but got no feedback....
Maybe someone knows if this would be possible or problematic.

1) W124 mechanical spedo.
2) Blaupunkt Los Angeles MP74 with speed based volume control input.

Q) Can the signal from one of the three (anti-lock related) wheel speed sensors (both front wheels, and the diff.) be used to control the Blau's volume adjusting feature?

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html

The 1990 & later cars use the cruise control speed signal...would imagine that might suffice.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
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44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Never thought of that... but it does seem a lot better tham messing with the anti-lock system.

I have to trouble shoot and rehab the cruise system any way including a broken switch + ?... anyway so I will look for a signal there when I dive in...

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html