No sound on passenger side front and rear ?? 2000 Mercedes cl 500

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

Fuse Box Diagrams https://fuse-box.info > mercedes-benz > mercedes-ben...

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

Question edited for clarity.

You fuse box is built into the end of the passenger side dash as shown in this link. It has 5 fuse boxes!

https://fuse-box.info/mercedes-benz/mercedes-benz-cl-class-s-class-c215-w220-1999-2006-fuses-and-relay

Check Fuse 78.

In the right side under seat fuse box, check Fuse 58.

Lots more help here. It appears to be a known issue.

https://www.google.com/search?q=2000+Mercedes+Benz+S500+not+responding+to+key

..

http://www.mercedesmedic.com/fuses-and-relays-location-designation-s-class-cl-class-2000-2006/

a fuse either under the dash or engine compartment. your owner man. should show and tell you where and what size fuse

It sounds like your rear heater core or the hoses to the rear unit is leaking. They run along the frame rail on the passenger side.

Pump under passenger rear seat. But if your having issue its the first thing to check and replace.

Try serviceing the trany ( Change filter and fluid )

Sounds like the amplifiers in the trunk, passengers side are failing.

You most likely have another fuse box either in the glove box or under the dasy. It sounds like a blown fuse.

1992 mercedes fuel pump filter is located on passenger side behind rear drive axle. disconnect battery, raise car and secure it with jack stands, remove rear tire, you will black plastic shield that protects fuelpump and filter