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PAC RP4.2-MB21-HAR User manual

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Aftermarket Radio and Steering Wheel Control
Interface Harness for 2014 - 2018 Mercedes Vehicles
Equipped with the Factory “Radio Delete” Option
PAC
®
| Ph. 727-592-5991 | [email protected]
©2020 Pacic Accessory Corporation
www.pac-audio.com
Rev. V2
Date: 012920
RP4.2-MB21-HAR
Introduction & Features
Important Notes
The RP4.2-MB21-HAR harness allows an aftermarket radio along with the RP4.2-MB11 interface to be installed into
2014 - 2018 Mercedes Sprinter vehicles equipped with the factory “radio delete” option.
1. The RP4.2-MB21-HAR is ONLY compatible with the 2014 - 2018 Mercedes Sprinter vehicle when the vehicle is equipped with
the factory “radio delete” option. Vehicles equipped with a factory radio will need to use the RP4.2-MB11-HAR harness that
is included with the RP4.2-MB11.
2. There are front speaker wires populated in this harness to ease the installation of speakers into the front doors by connecting
the OEM wiring in the doors to your new speakers instead of having to run new wires.
3. There is no OEM-AUX retention connection as this harness is to be used in vehicles with the “radio delete” option.
Wiring Connection Chart
Interface Connector 2
Yellow +12v Constant
Black Ground
Blue Powered Antenna Turn On
White Front Left + input
White / Black Front Left - input
Gray Front Right + input
Gray / Black Front Right - input
Vehicle Connector 1
Interface Connector 1
Red Accessory Output (10 amp)
Yellow 12v+ Constant
Black Ground
3.5mm Jack Steering Wheel Control Output
Pink MS-CAN +
Pink / Black MS-CAN -
Blue / Yellow Steering Wheel Control Output
Orange / White Illumination Output
Pink Vehicle Speed Signal Output
Violet / White Reverse Output
Light Green Parking Brake Output (-)
Installation Steps
Pink MS-CAN +
Pink / Black MS-CAN -
Vehicle Connector 2
1. Connect the 2-pin Black vehicle connector to any one of the open slots in
the CAN hub located above the drivers kick panel. Make sure that the Pink
wire of the 2-pin connector is on the same side as the Brown / Red wires
that are currently going to the CAN hub. (see picture to the right)
Important!: Do not try and force the 2-pin connector into the CAN hub
upside down. The 2-pin connector is keyed and will only plug into the CAN
hub in one direction.
2. For all other installation steps and detailed information please refer to the
instructions included with the RP4.2-MB11.
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