DIY installation of AVIC & other aftermarket HU's for W203 (Warning! lots of images!)
Senior Member
Joined: May 2005
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From: Philadelphia
05 C230wz 6M
Is it necessary to replace the amp(s) and all of the speakers? I want to do a simple swap of the headunit for a Z2 (with bluetooth, ipod, and steering wheel control add-ons) without the hassle or expense of changing everything else in the car...
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Last edited by supermotard; Feb 25, 2008 at 09:29 PM.
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LET C32 2002
Just for those people who are planning on using this guide, the Metra 70-9401 harness does NOT work with all W203 models. My radio has 2 plugs from it and only one of them fits into the metra harness and the pins don't line up properly. There must be different harnesses out there? 
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LET C32 2002
I have a 2002 C320 with the tape-deck stereo and 10disc CD changer in the glov box. As far as I know I don't have the Bose stereo or anything special like that. I have Metra harness 70-9401 and it has two equal size plugs on it. The mercedes plugs are different sizes, one being too wide to fit in the metra harness. I had to order this one from egay because no one local had the metra harness...
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LET C32 2002
Everyone went to Carpi131 but I decided on Pac's Swi-X+Swi-Can for the steering wheel button interface and they are made here in the US thus shipped from here and they are even sold on Ebay...
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Joined: May 2004
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From: Portugal
'13 E500 Coupe AMG// '17 E350d // '24 E53 AMG
C-class (W203) Jun-04 > CAN With Steering wheel control and Fakra connector CA-R-PI.133
for your car I think you will need the 133
http://cgi.ebay.com/ebaymotors/PIONE...spagenameZWDVW
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From: Portugal
'13 E500 Coupe AMG// '17 E350d // '24 E53 AMG
Guys, where did you connected the 3.5mm (headphone type) plug of the interface!?
I have all connected except that plug! Off course my steering wheel buttons aren't working, but I have Pioneer at my cluster!
I don't have the connector n.2, my radio didn't bring it, but I have the connector n.3 with all connections plugged to an 4 channel amp!
The unit is working 100% even without the connector n.2!
What is missing?!
I have all connected except that plug! Off course my steering wheel buttons aren't working, but I have Pioneer at my cluster!
I don't have the connector n.2, my radio didn't bring it, but I have the connector n.3 with all connections plugged to an 4 channel amp!
The unit is working 100% even without the connector n.2!
What is missing?!
MBWorld Fanatic!
Joined: Feb 2006
Posts: 6,213
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LET C32 2002
Guys, where did you connected the 3.5mm (headphone type) plug of the interface!?
I have all connected except that plug! Off course my steering wheel buttons aren't working, but I have Pioneer at my cluster!
I don't have the connector n.2, my radio didn't bring it, but I have the connector n.3 with all connections plugged to an 4 channel amp!
The unit is working 100% even without the connector n.2!
What is missing?!
I have all connected except that plug! Off course my steering wheel buttons aren't working, but I have Pioneer at my cluster!
I don't have the connector n.2, my radio didn't bring it, but I have the connector n.3 with all connections plugged to an 4 channel amp!
The unit is working 100% even without the connector n.2!
What is missing?!
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Joined: Feb 2006
Posts: 6,213
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LET C32 2002
Now question I have on steering wheel adaptor: I am using the Pac's SWI-X+SWI-CAN(one plugs into the other then to radio/metra harness.)
1. Cam someone draw me what wires to tap into from the radio and metra harness? To install the SWI-X+SWI-CAN?
1. Cam someone draw me what wires to tap into from the radio and metra harness? To install the SWI-X+SWI-CAN?
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From: NJ, NYC
Something Slow
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LET C32 2002
Here is the link its the top picture for the SWI-CAN it shown together with the SWI-X
2nd link is PDF of install...
http://www.pac-audio.com/products/pr...el%20Interface
http://pac-audio.com/instructions/swi-can.pdf
3rd connection diagram which I just noticed...
http://pac-audio.com/instructions/sw...pp%20guide.pdf
2nd link is PDF of install...
http://www.pac-audio.com/products/pr...el%20Interface
http://pac-audio.com/instructions/swi-can.pdf
3rd connection diagram which I just noticed...
http://pac-audio.com/instructions/sw...pp%20guide.pdf
Newbie
Joined: Feb 2008
Posts: 4
Likes: 0
2007 C230 Sport
Sunroof controls and window controls acting up
Ok got my AVIC D3 in and I have to say I really like the unit, and will like it more once i can get the Steering wheel working.
One question, it appears that after installing my sunroof controls are a little wacky to open the sunroof normally I could just pull back on the button once and it would open all the way. now it only goes back about 4" and stops then I pull back again for another 4". Also the windows used to go all the way up with on pull on the window switch and now I have to pull and hold to get the window up.
Does this have anything to do with the Avic Install / CAN system?
Car is a 2007 C230 Sport.
I'm using a BEST harness that the my car-fi supplier indicated fit the car's harness (which it does perfectly)
I appreciate any and all help.
One question, it appears that after installing my sunroof controls are a little wacky to open the sunroof normally I could just pull back on the button once and it would open all the way. now it only goes back about 4" and stops then I pull back again for another 4". Also the windows used to go all the way up with on pull on the window switch and now I have to pull and hold to get the window up.
Does this have anything to do with the Avic Install / CAN system?
Car is a 2007 C230 Sport.
I'm using a BEST harness that the my car-fi supplier indicated fit the car's harness (which it does perfectly)
I appreciate any and all help.
Senior Member
Joined: Sep 2007
Posts: 399
Likes: 0
From: NorCal
'02 CL203 M111
Guys, where did you connected the 3.5mm (headphone type) plug of the interface!?
I have all connected except that plug! Off course my steering wheel buttons aren't working, but I have Pioneer at my cluster!
I don't have the connector n.2, my radio didn't bring it, but I have the connector n.3 with all connections plugged to an 4 channel amp!
The unit is working 100% even without the connector n.2!
What is missing?!
I have all connected except that plug! Off course my steering wheel buttons aren't working, but I have Pioneer at my cluster!
I don't have the connector n.2, my radio didn't bring it, but I have the connector n.3 with all connections plugged to an 4 channel amp!
The unit is working 100% even without the connector n.2!
What is missing?!
I bumped into the same problem.
That little "Jack" connector is to go to the connector 2 behind your unit. There is no plug in the connector 2 for that !! true! actually you have to conect the harness provided in the box to the connector 2 then you will see this plug on the harness.
MBWorld Fanatic!
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Ok got my AVIC D3 in and I have to say I really like the unit, and will like it more once i can get the Steering wheel working.
One question, it appears that after installing my sunroof controls are a little wacky to open the sunroof normally I could just pull back on the button once and it would open all the way. now it only goes back about 4" and stops then I pull back again for another 4". Also the windows used to go all the way up with on pull on the window switch and now I have to pull and hold to get the window up.
Does this have anything to do with the Avic Install / CAN system?
Car is a 2007 C230 Sport.
I'm using a BEST harness that the my car-fi supplier indicated fit the car's harness (which it does perfectly)
I appreciate any and all help.
One question, it appears that after installing my sunroof controls are a little wacky to open the sunroof normally I could just pull back on the button once and it would open all the way. now it only goes back about 4" and stops then I pull back again for another 4". Also the windows used to go all the way up with on pull on the window switch and now I have to pull and hold to get the window up.
Does this have anything to do with the Avic Install / CAN system?
Car is a 2007 C230 Sport.
I'm using a BEST harness that the my car-fi supplier indicated fit the car's harness (which it does perfectly)
I appreciate any and all help.
MBWorld Fanatic!
Joined: May 2004
Posts: 1,482
Likes: 4
From: Portugal
'13 E500 Coupe AMG// '17 E350d // '24 E53 AMG
I bumped into the same problem.
That little "Jack" connector is to go to the connector 2 behind your unit. There is no plug in the connector 2 for that !! true! actually you have to conect the harness provided in the box to the connector 2 then you will see this plug on the harness.
That little "Jack" connector is to go to the connector 2 behind your unit. There is no plug in the connector 2 for that !! true! actually you have to conect the harness provided in the box to the connector 2 then you will see this plug on the harness.
The adapter instructions where useless!!
Newbie
Joined: Feb 2008
Posts: 4
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2007 C230 Sport
Thank you very much, you just saved me a night on the couch when my wife drives to work tomorrow.
MBWorld Fanatic!
Joined: May 2004
Posts: 1,482
Likes: 4
From: Portugal
'13 E500 Coupe AMG// '17 E350d // '24 E53 AMG
Senior Member
Joined: Sep 2007
Posts: 399
Likes: 0
From: NorCal
'02 CL203 M111
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Posts: 4,152
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From: NJ, NYC
Something Slow
Question to all who HAD the Factory Navigation Then Upgraded to the Pioneer or any other Brand Navigation Headunit.. How Do You Set the Clock In the DASH???? for Daylight Saving Time??
Senior Member
Joined: Sep 2007
Posts: 399
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From: NorCal
'02 CL203 M111
