SOURCE: belt routing diagram for a 2005 E320 mercedes benz
Hello I'm a M.B. tech. As long as it is original there is no amplifier other than the head unit itself. The only tricky part is getting the antenna to work with the new head unit. Take a test light and find which wire is hot all the time. That will be your circuit 30 wire(radio memmory). Next turn key to position 2 and find your wire( one is for the antenna and the other is for your radio operation) and isolate those 2 wires,. Find your ground wire and those are your basic connections. There is a fader switch in your center console wood. the head unit sends its power ther and it is dispursed to the appropiate speakers(it is also a common problrm when you have no sound. Try to pop the switch up carefully with a flat blade screwdriver. If not pop up the shifter trim ring and pull up on the console wood. You may have to remove the ashtray. It is a fairly simple install hopefully my advice has been helpful.
SOURCE: Diagram and location of the
Usually the fuse chart is in with the tool kit in the trunk underneath the carpet on left hand side. It will be held with velcro. The fuse chart has the fuse box locations on it as well. If not the fuse box locations are 1-in the trunk on the left side behind the little carpet panel. remove panel and then remove plastic cage looking cover and the padding. 2- on the drivers side of the dash. open door and remove cover. 3- in the engine compartment by the hood hinges. slide tabs and remove cover.
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