Nav TV NTV-KIT873 User manual

Ford A²B to 12-channel Analog & Digital sound processor
NTV-KIT873
3950 NW 120th Ave, Coral Springs, FL 33065 TEL [phone] FAX [phone]

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ZEN-A2B Interface
NTV-ASY272
ZEN RCA Harness
NTV-HAR315
NOTE: All vehicles require SYNC3,
this interface only applies to
vehicles equipped with A²B (B&O
and Revel Amplifiers)
The ZEN-A2B processor seamlessly converts 2018+ Ford factory A²B (Automotive Audio Bus) to 12-channel
analog RCA and TOSLink output. Adding aftermarket amplifiers to the OE B&O or Revel amplified SYNC3
system has never been so simple and seamless. This kit integrates with the OEM A²B bus to retain volume
control, full fade and balance (analog only), treble, mid-range, bass control & Bluetooth voice calls with no
external speaker (true OEM integration). NOTE: 2018 vehicles not equipped with a factory B&O or Revel
amplified system are not equipped with A²B bus and do not require this interface.
ZEN-A2B overview
ZEN-A2B Compatibility SYNC3)
Overview
Kit Content
Year(s)
Make
Model
NOTE:
2017
Ford
F150, Escape
With B&O or Revel amp
2018
Ford
F150, Escape, Expedition
With B&O or Revel amp
A2B-ZEN Adapter
NTV-HAR316
USB Cable (updates)
NTV-CAB009
Power/A²B
connector
USB (updates)
TOSLink output
Analog RCA outputs
WARNING: Do not connect any RCA cables to the ZEN-A2B interface or
additional processors prior to properly grounding aftermarket amplifier(s)!
DIP switches
Status LED
--NOT USED--

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*This remote wire must be used for aftermarket amplifier remote for proper functionality. If installing more than one
amplifier/DSP, a relay must be used for reliable turn-on (500mA max).
*Remote wire note: the ZEN-A2B (green LED) will turn on after the car is unlocked, but the blue remote wire will not output
until the key and radio are ON.
*NOTE: DownMix ON mixes vocals from center channel into Front and Rear L+R output channels.
ZEN-A2B Installation
1. For ZEN A²B installations, the factory amplifier must be removed and the ZEN-A2B can be installed into
its place. If this vehicle is not amplified from factory then this interface is not needed.
2. After locating the factory amplifier, disconnect it entirely as it will no longer be in use. Connect the
white, 10-pin plug removed from the amp (houses the A²B wires) and connect to the ZEN A2B
connector labeled ‘A²B’. This connector provides power and ground to the ZEN interface as well.
3. Connect the blue wire to the remote input on the amplifier*.
4. Adjust dip-switch settings for the desired options:
5. If using analog RCAs for signal to the amplifier, connect according to the reference chart below.
WARNING: Do not connect RCA cables to this interface until all amplifiers/external processors are
properly grounded. Failure to do this may cause damage to the interface and VOID the warranty!
1
2
3
4
5
6
7
8
9
10
11
12
Left
Front
Right
Front
Left
Front
Right
Front
Left
Front
Right
Front
Left Rear
Door
Right Rear
Door
Left Rear
Center
Right Rear
Center
Center
Sub
6. If using TOSLink for signal to the amplifier, connect the cable to the TOSLink port shown on page 2.
NOTE: both Analog and Digital output sound simultaneously, regardless of which type is used.
Time
Alignment
Attenuation
TOSLink
DownMix*
Loudness
Vehicle Settings
Position
DIP 1
DIP 2
DIP 3
DIP 4*
DIP 5
DIP 6
UP
(off)
Front Row
Full Scale
output (0 dB)
DownMix ON
Loudness
OFF
OFF
OFF
DOWN
(on)
Driver Focused
-12 dB output
DownMix OFF
Loudness ON
OFF
OFF

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ZEN-A2B General Installation Notes
•Tuning tips:
1. Before beginning tuning process (especially with external EQ/Processors), set Bass & Treble on
the head unit for each source to flat (0).
2. Begin with amplifier/EQ gains all the way down.
3. With dynamic music playing, adjust the radio volume to maximum.
4. Adjust the amplifier/EQ gains to desired maximum level.
•From the factory, some vehicles’ audio will attenuate when in reverse. Simply set the ‘reverse volume’
to desired level while in reverse to adjust this. The ZEN-A2B will retain this method. The same is true
for NAV guidance audio and BT voice calls.
Multi-Color LED Status Indication
LED Status
Indication
Solid Red
MOST Active
Violet
MOST traffic commands
Blinking Red
Peaking (maximum digital signal level achieved)
Blinking Blue
PC Link with app (future use)
Green
The LED remains lit for ~3 min after exiting and
locking vehicle (normal operation)

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For ZEN-A2B installations,
the factory amplifier MUST
be removed.
ZEN-A2B System Layout (analog)