07 C230 Sirius Help
I'm looking to install Sirius on my car. It's a 07, bought it late 06. I don't see the fiber optic cable in the trunk. I've looked both sides of the trunk and attached pictures of both side. I don't even see the amp that's supposed to be there. Am I looking at the wrong places? Please help.

You evidently have the standard audio system in the car. If this is the case and you want to upgrade to sirius the get 1 of the small recievers and have it custome mounted into the ashtray area of your dash. Run the audio out of the sirius into the aux input and you will be cooking with gas. You should etain all the steering wheel controls for the system by doing this. Also by you having audio 20 you can upgrade to more power and better speakers without some of the headache of the h/k system with logic7.
Based on the photo of the right side of your trunk, your vehicle is NOT pre-wired for *anything*.
Normally on the W203 there are tons of wires on the right side for the telephone, Sirius, Tele-aid, optional AMP (HK), etc there should also be a bracket pre-installed on the right side of the trunk to bolt the Sirius receiver into - even if you do not have any of those options. For 2007 all of this was removed unless ordered specifically. This means those options can not be easily installed - none of the wiring is there.
Audio 20 vs HK makes *NO* difference in any of this and never has. Sirius can be installed just the same with Audio 20 as it is with the upgraded system.
Because you do not have the HK system, you have no AMP back there. That's normal and has nothing to do with your issue.
Sorry, a factory Sirius install is not easy in an 07 since it's stripped down. At least you have the new power-train!
Last edited by acr2001; Jan 24, 2010 at 11:13 PM.
Based on the photo of the right side of your trunk, your vehicle is NOT pre-wired for *anything*.
Normally on the W203 there are tons of wires on the right side for the telephone, Sirius, Tele-aid, etc - even if you do not have any of those options. For 2007 all of this was removed unless ordered specifically. This means those options can not be easily installed - none of the wiring is there.
Audio 20 vs HK makes *NO* difference as far as the fiber being "up front" or being able to retrofit Sirius!!!
It is true that because you do not have the HK system, you have no AMP back there. That's normal and has nothing to do with your issue.
There should still be plenty of orange fibers back there for the phone system, Sirius, and Tele-aid options. These fibers are gone on the 07 model year unless the vehicle was ordered with pre-wiring. Sorry!
Last edited by acr2001; Jan 24, 2010 at 11:29 PM.
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I don't have cd changer. My car is pretty basic with sunroof package and auto, it's about it.
I don't have cd changer. My car is pretty basic with sunroof package and auto, it's about it.
If you don't mind doing this sort of thing then I think it's worth it. You only have to spend money on the fibers and maybe some cheap parts from radio-shack if you have to splice in the power / wake up. If the dealer is charging tons for the fibers then I would look on ebay or at a junk yard.
http://cartronics.com/MBMost.html?MBClass=E&VIM=1
I only had my 2006 E320 for a couple of weeks and am considering this.
Mike T.
Go for it. I Just hope they know what they're doing.
Hopefully they realize 2007 = W203 because the W204 Sirius unit will not work on a 203.



The Head Unit must be told that the SAT receiver is present to enable the soft keys for tuning. You need a dealer or a Star Diagnostic rig to do this
MbenzNL.com might have a "kit" with necessary harness to install SDAR in a 2007 W203. Write and ask.
The shop called me back today when I asked them if they need to drill into the car for the antenna. They said it's not required, they can run the antenna to a different location other than the factory specific location. So there're no drilling on the car and everything will be hidden. $499+ tax for parts and labor, not a bad deal I guess.
The Head Unit must be told that the SAT receiver is present to enable the soft keys for tuning. You need a dealer or a Star Diagnostic rig to do this
MbenzNL.com might have a "kit" with necessary harness to install SDAR in a 2007 W203. Write and ask.
This means that on his car he will still have to have it enabled as you said, because he has *nothing* on the MOST loop from the factory, so it is certainly disabled. I'm just trying to make the thread accurate for anyone else reading. I know that I've swapped COMAND units into my car and had the phone system auto detected without problems.


