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2004 clk 500 cab
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Discussion Starter #1 (Edited)
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I just bought a 2004 clk 500 with a tape deck in dash radio and cd changer in glove box. The radio is A 203 820 25 86 and is fiber optic. What are my upgrade options to either add a satellite reception and which MB head units with navigation will fit my car

Thanks for the help
 

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W221 & Audio Moderator
2013 S550
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Welcome to the forum!!

The COMAND manual for your car is at http://phdwebsite.powerpulse.cc/COMAND/2004 C&CLK&G COMAND.pdf and it shows the unit, which has a built-in CD-based nav reader. The manual also makes mention of a Sirius capability, but I do not know which specific Sirius unit fits your car (different models require different Sirius units, and they are not interchangeable; they can also be hard to find). One member has posted the part numbers for the various satellite radios that fit various MB models at http://mbworld.org/forums/audio-electronics/332955-sirius-receiver-part-numbers.html but it only goes back to 2005 - and it lists components for MOST fiber optics (see more below). Your authorized dealer may be able to provide more information. The only installation reference I have is for an '05 model - http://www.billsden.org/fileadmin/media/mercedes/slk/docs/proc_sat_radio_install_11_2005.pdf - and it is for an SLK. But it will give you some idea what you're in for. Installation instructions come with the kit.

You can find part numbers and retrofit information for COMAND at http://www.mercupgrades.com/ - enter the search parameters with your car type (W209) and "Retrofits" - you will find information on part numbers, types of COMANDs and so forth. Pay particular attention to cautions about fitting a European unit to a North American car. Your car has a D2B fiber optics bus. There is a different bus in slightly newer models, called MOST. Equipment designed for one cannot be used on another. So, as you explore options, do NOT buy any MB COMAND with a DVD based nav reader. They are for MOST bus, not D2B, and cannot be used in your car.

If you don't find the OE MB Sirius unit, it is possible you may wind up going to a 3rd party tuner and feeding it to an AUX. I don't know your car well enough to know if you already have an AUX input for the existing radio; your owner's manual should tell you. In a quick review of your COMAND manual I did not see a reference to selecting an AUX input, so the COMAND unit my not have one (please feel free to study it further; not all COMAND units have an AUX input).

If you do not have an AUX input, you might want to use a unit such as those made by Dension, iPod Car | iPod car Adapters | iPhone Car Kit | iPhone Car Adapter | Hands Free Car Kits - Dension - be sure to check the D2B units, not MOST. They allow iPod integration via the fiber optics (better sound), and several also provide AUX inputs for other devices, such as satellite radio.

You did not ask about 3rd party units that have more modern features - already coming with integrated Bluetooth, Sirius/XM, iPod, DVD-based navigation and all kinds of features- such as the Pioneer Excelon series. But I address it briefly anyway. Using such a unit would also require replacing your amp, and using a good audio processor such as an Audion. You may or may not wind up replacing your speakers. For more on what you might get into with that, see http://www.benzworld.org/forums/w220-s-class/1618981-removing-command-system.html
 
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