Need Help! Stereo Install w/ HK for CLK55 (w209)
As for the subs, what is your enclosure plan?
Last edited by benamg22; Nov 29, 2010 at 09:51 PM.
Sound like you've got it all figured out equipment wise and a good plan for the install. There is a wire guide and other info floating around on this and other boards.
This is an excellent thread;
https://mbworld.org/forums/clk-class...o-upgrade.html
Another fantastic thread;
http://www.benzworld.org/forums/audi...an-becker.html
Basic wire guide (post #7);
https://mbworld.org/forums/clk-class...g-diagram.html
All you need to do in return for this info is to keep us up to date and post pictures

Good luck matey!
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As for using the stock speakers, I've thought about at least trying them first with the upgraded amp. I've read people think these are pretty good. Worst case I can replace them after the fact since I am going to install a new 4 channel amp.
Big question....anyone know which wire is the "remote in" to the factory amp - surely it is not a fiber optic connection like the speakers from the HU, but I'd love some verification on that too? I am not going to install a new HU, so I don't want to have to run to the cigarette lighter, and the JBL MS-8 says you must cut the factory amp remote in, run it to the remote in on the JBL, then run the remote out from the JBL back to the factory amp. Don't know how it would know, but hate to ignore the instructions.
Thanks. You guys have been very helpful.
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If you have a cabriolet, the amplifier unit is located elsewhere (on another drawing).
Your vehicle type is important for trunk-mounted items that are often re-located in the cabrio version. You should always state the vehicle details.
Last edited by moondust; Dec 3, 2010 at 01:21 PM.
Refer to drawing items 2, 3, and 4 for access information. Have a think about proceeding further, as you might need more detailed information from the specified drawings.
I have edited my earlier post, as I now realize some info there was incorrect.
i am glad you are here too

Btw who owns this forum?
If not much, you might consider tapping into the cableform for +12v supply to the Amp, which is fused via f26 at 25A.
If you look at the circuit diagram I provided, on the extreme left hand side, you will see the supply line on a RED/VIOLET wire that goes to pin 26 on the amp.
Also consider using spare fuses on the fusebox in the trunk (l/h side). My fuse map shows f5 and f11 are spare on my CLK, so you could wire your new circuit into either of those.
Regarding the circuit diagram, note from the legend that where different, cabrio/coupe items are shown in a box with chained line around, eg - - - -
a) U23 = cabriolet
b) U611 = coupe
As for the 12v, all I need is a remote wire for the sound processor (which will then feed the new amps). Do you know or can you tell from the diagram if F34 at 26 is switched or contant power? The JBL MS-8 unit I'm considering wants you to take the 12v in from the factory amp and run its remote out back to the factory amp. However, upon my research I think it will take an alternative remote in and still get the job done. My other option is an Audiocontrol DQL, which has a remote turn on using the high level input from the amp. It then converts the signal to a 12v to trigger the amps. My preference is really the JBL just because I would be linking a Harman sound processor to the factory Harman system. Don't know if it makes a difference, but can't hurt. More to come.
Last question (for now), can I assume the other 2-pin connector (labeled U1/U2) is the fiber optic coming into the amp?
Keep the advice coming if you have any tips.
Last edited by benamg22; Dec 3, 2010 at 09:45 PM.
Battery > F32 (prefuse box) f1 (125A) > F34 (fusebox in cockpit driver's side) f26 (25A). So this supply is live with the ignition off.
However, the circuits inside A2/13 might not be energised until the 'wake-up' signal is received via the MOST fiber-optic highway on switch-on.
http://forum.evotechnik.net/showthread.php?t=21258
If you have a cabriolet, the amplifier unit is located elsewhere (on another drawing).
Your vehicle type is important for trunk-mounted items that are often re-located in the cabrio version. You should always state the vehicle details.
Andy



