No fiber optic cable????
Wendy
Aren't you glad you asked Eric???


I will email Steve though and tell him about my dilema.
The million dollar question is, does the fiber optic cable have a power plug as well or are they separate parts? The installer guys don't know - they said that the service dept. (mechanic) person would know and the dealership said that they charge $125 an hr. so even if it takes them 10 minutes to determine what the car needs, I'll be charged a min. of $125.
The car has everything else internally, phone and Navi, but no cables for cd changer???

And so many of you wonderful guys suggested that I could install this myself
I swear I'm going to hurt someone...

Wendy
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that is REALLY weird, b/c I believe that in 2005, the C320 came with Harmon/Kardon standard. So, it's my understanding that it would absolutely need that cable to talk to the amp. perhaps the previous owner put in an aftermarket system and they re-routed the electronics?
The Best of Mercedes & AMG
I will email Steve though and tell him about my dilema.
The million dollar question is, does the fiber optic cable have a power plug as well or are they separate parts? The installer guys don't know - they said that the service dept. (mechanic) person would know and the dealership said that they charge $125 an hr. so even if it takes them 10 minutes to determine what the car needs, I'll be charged a min. of $125.
The car has everything else internally, phone and Navi, but no cables for cd changer???

And so many of you wonderful guys suggested that I could install this myself
I swear I'm going to hurt someone...

Wendy
Thanks! these guys here don't like me much j/k 
Sorry to hear all the troubles you are going through for a simple mod.
Fiber optic and power cable are 2 separate plugs into the changer.
Best bet is to have Steve do it since he is making a trip here soon.
Feel free to call me again if you have any further questions.
Just don't hurt me
that is REALLY weird, b/c I believe that in 2005, the C320 came with Harmon/Kardon standard. So, it's my understanding that it would absolutely need that cable to talk to the amp. perhaps the previous owner put in an aftermarket system and they re-routed the electronics?
Thanks! these guys here don't like me much j/k 
Sorry to hear all the troubles you are going through for a simple mod.
Fiber optic and power cable are 2 separate plugs into the changer.
Best bet is to have Steve do it since he is making a trip here soon.
Feel free to call me again if you have any further questions.
Just don't hurt me

I'll talk to this fellow Steve (whoever that is) and fill him in on what all the trouble is and see what he says, so I'm not going to return the unit until I know for a fact that it can't be installed.
Wen
Wendy


I've already sent an email to Steve - just waiting for his response...
Now, I KNOW I'm gonna have to hurt someone
I just can't catch a break today 
Wendy
The whole CD-changer plus install shouldn't take you more than $450 which is what I paid back in late 02. The price didn't change much on these parts I believe.
just talk to Steve and find out what you need. you can ignore the installer telling you need this and that.
Thanks! these guys here don't like me much j/k 
Sorry to hear all the troubles you are going through for a simple mod.
Fiber optic and power cable are 2 separate plugs into the changer.
Best bet is to have Steve do it since he is making a trip here soon.
Feel free to call me again if you have any further questions.
Just don't hurt me


took apart the passenger side and realize the car isn't pre-wired for AUX. took apart the center console and realize I need new terminals for the C2 connector. put everything back, went to the dealership the next day and found out the little tiny terminal cost me $4 each and I needed 4.
got home took apart the center console again and finally got it done in less than 15min. 2 days vs 15min priceless.


I have the phone, sirius, cd changer, and the navigation system..all integrated through the optical loop.
The places that you took your car to are on crack..



You might take another look under the carpet on the right side of the center console. Just peel it back. You should see a gaggle of bright orange fiber optic cables. They are all labeled with a tag telling its function. Can you find one that is not connected labeled CDC? That means Compact Disk Changer.
If you find that, your car is prewired.
You do need to play do-se-doh with the fiber optics to get the changer into the MOST ring sucessfully. I found that on some cars the power cable for the CDC is stored neatly with ty-wraps to the harness behind the head unit. You simply cut the ty-wrap and set the pigtail free. You feed it into the glove box to plug into the CDC. Attach the fiber optics so SOUND is connected to HU/CDC IN. Then remove the other end of the HU/CDC IN cable from the back of the head unit, and insert it into the input of the CDC. You will find in that area a short orange fiber optic cable with a 2 position housing on one end, and just the fiber optic ferrule (black plastic) at the other end. The end you removed from the HU goes in the empty spot on the 2 position housing.
Then put the short cable into the housing on the HU where you took one out. The light will exit the head unit on the cable you did not move, and run down the fiber to the amp. The amp will read the light beam and send it back on the other fiber to the CDC. The CDC will look at the light and send it back on the other fiber to the head unit. Now that is why it is a MOST ring. If you have a phone, Sirius, or TeleAid the ring simply stops at more places. If you have finished attaching the fiber optic cables and the power plug to the CDC, then try it. If it sounds good, the steering wheel buttons work, and the cluster displays the title you are golden. Then button everything up.
Now you can enjoy an adult beverage and admire your work.
I have the phone, sirius, cd changer, and the navigation system..all integrated through the optical loop.
The places that you took your car to are on crack..
The whole CD-changer plus install shouldn't take you more than $450 which is what I paid back in late 02. The price didn't change much on these parts I believe.
just talk to Steve and find out what you need. you can ignore the installer telling you need this and that.
I will check in the morning to see if Steve has responded to my email.
I actually have to take my car in to the stealership tomorrow morning -my air conditioner is making a slight whistling sound. If it's not one thing, it's another
You might take another look under the carpet on the right side of the center console. Just peel it back. You should see a gaggle of bright orange fiber optic cables. They are all labeled with a tag telling its function. Can you find one that is not connected labeled CDC? That means Compact Disk Changer.
If you find that, your car is prewired.
You do need to play do-se-doh with the fiber optics to get the changer into the MOST ring sucessfully. I found that on some cars the power cable for the CDC is stored neatly with ty-wraps to the harness behind the head unit. You simply cut the ty-wrap and set the pigtail free. You feed it into the glove box to plug into the CDC. Attach the fiber optics so SOUND is connected to HU/CDC IN. Then remove the other end of the HU/CDC IN cable from the back of the head unit, and insert it into the input of the CDC. You will find in that area a short orange fiber optic cable with a 2 position housing on one end, and just the fiber optic ferrule (black plastic) at the other end. The end you removed from the HU goes in the empty spot on the 2 position housing.
Then put the short cable into the housing on the HU where you took one out. The light will exit the head unit on the cable you did not move, and run down the fiber to the amp. The amp will read the light beam and send it back on the other fiber to the CDC. The CDC will look at the light and send it back on the other fiber to the head unit. Now that is why it is a MOST ring. If you have a phone, Sirius, or TeleAid the ring simply stops at more places. If you have finished attaching the fiber optic cables and the power plug to the CDC, then try it. If it sounds good, the steering wheel buttons work, and the cluster displays the title you are golden. Then button everything up.
Now you can enjoy an adult beverage and admire your work.
Sorry, I have no idea what you are talking about ie: HU, MOST, CDC but thank you for very detailed instructions....perhaps they will help someone else who is more mechanically inclined. But thank you again.
12 speaker Harman/Kardon Logic7 Premium Sound & Digital Sound.
Single disc CD/AM/FM/Weatherband Radio.
If it has digital sound wouldn't that mean that it has the fiber optic cable already installed?
OPTIONAL EQUIPMENT it
Std. Cell Phone Prewiring
Radio Audio 20 w/SIngle CD
When the installer guys took everything apart they said that it also has the prewiring for Navi as well, why wouldn't that be listed in the optional equipment section of the spec sheet?
Very confused...sorry for the ranting again



Pardon me for rambling on a bit, but I wanted to include what to look for should someone in the future search the forum with a similar dilema in search of an answer. I know I don't like to wade through a thread that states a problem, but gives no advice beyond "see the dealer." That is almost as bad as "Reload Windows."
Steve will be able to help you. A terrific fella who knows more about these cars than Herr Benz himself.
I used initials that are attached to items in technical publications. I should explain what each means. Most Americans don't even know what that little plastic thing on the end of a shoe lace is called. (Aglet)
HU is Head Unit, the part in the dash with the radio, display, and single disk player.
MOST is Media Oriented System Transport. This is the standard used by car manufacturers to move data over fiber optic cables from device to device in the entertainment system.
CDC is the Compact Disk Changer. This is mounted in the glove box and holds a number of compact disks that can be selected automatically like a juke box.
I hope you are enjoying motoring pleasure very soon with your new CDC (which is one of the buttons on your HU)
do you have pics or part numbers for the terminals ? I have an 07C230ss and of course this one didn't include this white aux connect. I removed the pass kick panel and searched everywhere.
"not as much trouble as I went through to put in a simple AUX connector.
took apart the passenger side and realize the car isn't pre-wired for AUX. took apart the center console and realize I need new terminals for the C2 connector. put everything back, went to the dealership the next day and found out the little tiny terminal cost me $4 each and I needed 4. got home took apart the center console again and finally got it done in less than 15min."
Thank you
dirt diggler



