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I cut the existing “C” connector off but left about 2 inches of wire on that connector.  The reason I did that 
was to allow me to add an additional connector to that piece and the new harness adapter so I could 
reinstall my Audio 30 unit if need be.  You don’t have to do this and can route those five wires directly to 
the C1 and C2 connectors using the pins listed previously.  Below is a picture of the connector before I cut 
it off. 

 

 

And here is what it looks like after adding the additional connector (6 pin Molex … again not necessary … 
me just being weird) 

 

 

The wires removed from the “C” Audio 30 connector go to the C1 and C2 COMAND connectors as 
follows: 
 
C pin 1 --- goes to --- C2 pin 9  (brn/red   CAN B high) 
C pin 2 --- goes to --- C2 pin 8  (brn   CAN B low) 
C pin 4 --- goes to --- C2 pin 10 (blu/blk   D2B wake-up) 
C pin 5 --- goes to --- C1 pin 6   (red/blk   CD c) 
C pin 6 --- goes to --- C1 pin 5   (brn   CD changer -) 
 

Summary of Contents for MY2001 C-Class COMAND 2.0

Page 1: ...ced knowledgeable than I will ever be Contact him if you want it done right as opposed to your local MB dealership that will probably do it wrong if at all The retrofit is pretty straightforward on a new C It should only take about three hours max if you are good like Steve under two For reference my C has the Bose audio option CD changer and integrated V60i cell phone I created a PDF copy of the ...

Page 2: ...ifferent navigation gyroscope angle adapter depending upon how the unit sits in the dash The W209 CLK units are the same as W203 s There is info on both of the independent install retrofit links on my website about part numbers You can usually find COMAND units on eBay but be cautious about what you buy there This is a picture of the head unit I used I purchased a COMAND adapter harness for my C a...

Page 3: ...talls but I wanted to make my install as stock as possible Intuitively the rear antenna should work a little better as the line of site around the vehicle is better plus the parts are cheaper than buying a GPS antenna although more work to install The splitter and coax cable may already be installed in later 01 and beyond models but mine was not The part number for the GPS antenna cable is A203 54...

Page 4: ...ir vent took me about 20 minutes The tabs you use to pivot the vents farther up and down to get to the screws and release tabs are easy to figure out If you are pivoting the vents up you pull the lower tabs right the upper tabs right to pivot the vent down You remove the two Torx screws on the bottom of the vent opening as shown in the WIS by pivoting both vents up When you pivot the vents down th...

Page 5: ...e the Bose audio system there will be speaker wires in the B connector otherwise that connector is empty as on mine With the exception of the C connector all of those are going to plug back in to the COMAND unit as is The C connector needs to be modified You can see the difference in the back of the head units in these two pictures Audio 30 Alpine US Spec head unit COMAND 2 0 head unit ...

Page 6: ...connectors using the pins listed previously Below is a picture of the connector before I cut it off And here is what it looks like after adding the additional connector 6 pin Molex again not necessary me just being weird The wires removed from the C Audio 30 connector go to the C1 and C2 COMAND connectors as follows C pin 1 goes to C2 pin 9 brn red CAN B high C pin 2 goes to C2 pin 8 brn CAN B low...

Page 7: ...e This is what the modified adapter harness looks like before installation in the vehicle And after installation Now for the GPS antenna connection Again these steps are not necessary if you install an additional GPS antenna under the dash as Steve MBenzNL and others do Or the GPS antenna connector rectangular gray HRS type may already be located behind the radio although it was not on mine To ins...

Page 8: ...a was the lower one on my vehicle red arrow but you should trace the cable back to the antenna first to verify which one is which Install the GPS Splitter on the antenna coax mounting plate there are two holes for it already blue arrows by just snapping it in place Disconnect the GPS connector and plug the antenna lead to the bare connector then connect the part you just removed TeleAid coax red b...

Page 9: ...t of the wire bundles already there down the fender well through the rear and front door sill openings up the A pillar and then under the glove box to the center console opening Here is a picture of the rear door sill opening And the front door sill opening ...

Page 10: ...ll WIS which will look like this installed in the glove box I then routed the AUX cable under the glove box with the GPS coax and into the center console opening Make all the connections to the back of the COMAND unit and test to make sure everything works before buttoning up all the stuff you removed Everything is reinstalled in the reverse order they were removed Make sure you follow the WIS to ...

Page 11: ...icle will require version coding at your local dealership and to make TeleAid display properly on the COMAND display and the instrument cluster display work during navigation When you are done you will have something that looks like this I am getting 4 satellites here in this picture you only need three for 2D tracking This car is in the garage of a two story house so I am impressed my ML gets non...

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