A²B® is a registered trademark of Analog Devices Inc.
BHM
07/18/18
NTV-DOC320
3 |
P a g e
Wire Side
(HAR325)
*
If installing more than one amplifier/DSP, a relay must be used for reliable turn-on (ZEN output: 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 12v until the key and radio are ON.
*When DIP 3 is ON, front and rear chimes mixed into TOSLink output
**When DIP 5 is ON, factory chimes are
stripped
from all other channels, including TOSLink.
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. With the vehicle
off, connect the provided ZEN-A2B harness to the (previously removed) OEM amplifier connectors
(gray & black). Below is a pin out chart (just for reference):
3.
Connect the OEM
A
²B® (USB)
connector removed from the OEM
amplifier to the
A2B IN
port on the
ZEN-A2B.
4.
Connect the
blue
wire (PIN 2) to the remote input on the amplifier*.
5.
Adjust dip-switch settings for the desired options:
6.
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!
RCA
1
2
3
4
5
6
7
8
9
10
11
12
Channel
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
7.
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.
Pin #
Description
Color
1
Ground (-)
Black
2
Remote Output
Blue
5
CAN HI
Violet/White
6
Constant 12v (+)
Yellow
10
CAN LO
Violet
Time Alignment
Attenuation
TOSLink Fader Control*
Loudness
Global Chime routing**
Position
DIP 1
DIP 2
DIP 3
DIP 4
DIP 5
DIP 6
UP
(off)
Front Row
Full Scale
output (0 dB)
TOSLink front channel
only; fade control active
Loudness
OFF
OEM chime function.
Front = Front doors,
Rear = Rear doors
OFF
DOWN
(on)
Driver Focused
-7 dB output
TOSLink fader free
(OEM fader disabled)
Loudness
ON
Front chimes: RCA 5 & 6
Rear chimes: RCA 9 & 10
OFF
