I have a 2000 Mercedes S500 (W220) with a Bose amplifier in the trunk. Everything works on the navigation screen but the sound. NO SOUND.

Question edited for clarity.
Question moved to model category.

Mercedes are the only manufacturer to have 8 or 10 fuse boxes :>D Don't forget the radio is also connected and monitored by the BCM.

Mercedes-Benz CL-Class & S-Class (C215, W220

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Here you will find fuse box diagrams of Mercedes-Benz CL500, CL600, CL55, CL63, CL65, S280, S320, S350, S400, S430, S500, S600, S55, S65 (1999, 2000, 2001 ...

Mercedes-Benz E-Class (W211; 2003-2009) fuses ...

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Here you will find fuse box diagrams of Mercedes-Benz E200, E220, E230, E240, E270, E280, E300, E320, E350, E400, E420, E500, E550, E55, E63 2003, 2004, 2005, ...

Fuse box diagram Mercedes w220 and relay with ...

FuseAndRelay.com https://fuseandrelay.com > mercedes
In our article you will find a description of the fuses and relays Mercedes 220 with box diagrams, photo examples and their locations. We will note the ...

‎Engine compartment · ‎Box on the left side · ‎Box on the right side · ‎Additional box

You need a skilled auto-electrician, not a mechanic, one that has a high end scan tool computer that can analyze the stored and live data, plus reading any DTC Codes.

To me, it sound like you have a failing battery, possibly erratic charging and some bad grounds. The electronics on Mercedes are overly complex.

Sounds like you have a case of "stuck shocks". There is such thing and they have to either be driven over a speed bump or something similar to see if they will come down. I'm sure they are riding very "stiff" and uncomfortable. If that doesn't do it, they will then need replacing. I hope this gets you straightened out, John 3:16-17 (KJV)

Try the attached video from YouTube. How to Change Mercedes Benz Class Turn Signal Lights W220

It's in your truck,check this video out. How to jump start Mercedes S430 S500 W220 with trunk jammed or locked

my truck on my s500 2000 model will not open at all, not will the key and not on the door the key doing everything it suppose to do with the windows and the sunroof, bnut them truck will not pop up could it be a fuse or is the the lock is stuck

have you checked the fuses?

ive had this same problem with my 2000 s500 something in the trunk has hung in the latch i used the key and had some help to lift the trunk lid with a little force upward it will come open the net in the trunk gets hung in the latch

Greetings steve751:
Check your fuse and replace if necessary. Look in your car's manual in the glove box for the location of fuse box and fuse.

Hello
To add navigation option you have to have the original screen in the car , and then you have to install the full navigation parts .
You can change the language from the menu itself
Hope that helps