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- Page 1 3950 NW 120 Ave, Coral Springs, FL 33065 TEL 561-955-9770 FAX 561-955-9760 MOST-HUR MB (OPTI-1) Mercedes Head Unit Replacement Interface NTV-KIT421 DS, BM 04/15/14 NTV-DOC141...
- Page 2 DS, BM 4/15/14 NTV-DOC141 Overview NAV-TV’s OPTI-1 is a radio replacement interface for compatible Mercedes Benz vehicles equipped with an external M.O.S.T. fiber optic amplifier. The module allows the factory amplifier, speakers and sound quality to be retained when adding a modern aftermarket radio. Other components in the factory system, such as a CD changer, satellite radio, telephone module, DVD player, or any other factory component in the M.O.S.T loop, will not function after the installation.
- Page 3 DS, BM 4/15/14 NTV-DOC141 OPTI-1 Installation 1. S CLASS, CL, SL Vehicles: You must decode the voice recognition from the car via a local dealer before removing the COMMAND radio. 2. ALL VEHICLES: Base-line the factory COMMAND radio: a. Adjust the volume to a comfortable listening level b.
- Page 4 DS, BM 4/15/14 NTV-DOC141 6. Connect the following wires from the provided Power/Signal Harness: Pin #, Color Description Connect to: Black Ground (-) Ground (-) @ Radio Harness Constant 12v (+) 12v (+) Constant Power Blue Remote in 12v (+) Remote OUT from radio (blue/white) 7.
- Page 5 DS, BM 4/15/14 NTV-DOC141 6. The AM/FM antenna is located at the audio gateway (AGW). To interface with the factory AM/FM antenna you must use an antenna adapter (Metra 40-EU10, not provided) as well as an antenna extension harness (not provided) which must be run from the AGW to the front of the vehicle and into the antenna input of the aftermarket radio.
- Page 6 DS, BM 4/15/14 NTV-DOC141 Q5: Will the OPTI-1 work with any aftermarket head unit? A5: Yes, as long as the unit is capable of a full range RCA pre-amplified audio output and a remote amplifier turn on. Q6: I purchased an aftermarket steering wheel control interface and cannot get it to work. A6: Steering wheel controls in every compatible vehicle are on the CAN network.
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