Nav TV NTV-KIT871 Installation Manual - page 5
BHM
04/24/18
NTV-DOC319
5 |
P a g e
*NOTE: in this scenario, the vehicle still must be programmed for external amp (see red note above).
ZEN-M General Installation Notes
• This interface can be installed in vehicles with or without an amplifier & with or without MOST fiber
optic presently installed.
1. Vehicles with fiber amplifier: the amplifier must be removed. Connect the OEM fiber previously
connected to the amp, directly into the ZEN-M.
2. Vehicles without OEM amplifier or MOST fiber: Use the supplied fiber optic extension and
connect from the fiber port behind the radio to the MOST fiber port on the ZEN-M.
NOTE: If the
vehicle is not equipped with an OEM amplifier, you must program the system for external
amplifier for the ZEN-M to operate properly. Use NAV-TV’s ZEN-M-PRG programmer (NTV-
KIT866 sold separately).
3. Vehicles without amplifier but still equipped with fiber*: Disconnect the fiber from the radio,
disassemble the fiber coupler and route the provided MOST extension into the factory MOST
loop like shown below (to continue proper MOST data flow):
• 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.
• For Mercedes, there is no separate dedicated subwoofer control.
• NOTE: The CENTER Channel in some Mercedes vehicles is a DUAL-VOICE coil speaker – one coil is
connected to the factory amp the other coil connects to the OEM EMBRACE module – see page 9 for
wiring diagram.