XTRONS Mercedes Custom Fit Unit is direct fitment for the compatible vehicles we list; it is simple plug and play installation, but for some vehicles, due to the different harness connector in the vehicle which it is equipped with fiber optical , a harness adapter or wiring modification is required to make the sound system work,. E320 is an example; the original radio in E320 is shown as below:
- e320-1.jpeg (357.74 KiB) Viewed 60285 times
- e320-2.png (477.55 KiB) Viewed 60285 times
Firstly we need to look at the original wiring diagrams and standardized coloring scheme of the vehicle:
- standardized coloring scheme of the vehicle-1.png (279.14 KiB) Viewed 60285 times
- standardized coloring scheme of the vehicle-2.png (382.3 KiB) Viewed 60285 times
Then we can start the modification by the following steps shown in the pictures below:
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- steps shown-2.png (65.78 KiB) Viewed 60285 times
- steps shown-3.jpg (380.28 KiB) Viewed 60285 times
Note: ACC wire needs to be extended about 30CM if required to connect to a live source from cigarette lighter, and radio antenna adapter(XTRONS RANT01 is compatible) is required if the radio antenna port is missing from the center console
The Canbus connector is located under the storage pocket shown as below:
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- pocket-2.jpeg (227.48 KiB) Viewed 60285 times
Find the correct wires from the CanBus connector and connect them to the ISO harness of our unit:
- canbus conn.jpeg (615.06 KiB) Viewed 60285 times
Canbus scheme:
Typically the CAN Bus is made up two wires, CAN-H (CAN High) and CAN-L (CAN Low), connect to all the devices in the network to power up the unit
- canbus scheme.jpeg (92.49 KiB) Viewed 60285 times
01:TXD
02:NULL
03:NULL
04:NULL
05: REVERSE-IN
06: ACC
07: CAN-L
08: +12V
09: NULL
10: TXD
11: NULL
12: NULL
13: BRAKE-IN
14: DIRECTIONAL LIGHT
15:CAN-H
16: GND
Referred accessories for the installation:
ISO adapter: AK/PA77M211/PWRC
Fiber Optical adapter: FOBB01
Radio Antenna adapter: RANT01