iPod/iPhone + Aux Connectivity
AM/FM & Internet Radio
Display & Remote Features
Bluetooth Technology: The Kenwood KMM-BT308U is equipped
with built-in Bluetooth (ver. 2.1 + EDR) allowing you to make and receive phone
calls wirelessly through the receiver; as well as stream music wirelessly from
your smartphone to the head unit. In order to use Bluetooth
wireless technology, your phone must also be Bluetooth compatible and be able to
interpret certain profiles. This unit is compatible with the following Bluetooth
- Hands-Free Communication: HFP 1.5 (Hands Free Profile),
OPP 1.1 (Object Push Profile), PBAB 1.0 (Phone Book Access Profile).
- Audio Streaming: A2DP 1.2 (Advanced Audio Distribution
Profile), AVRCP 1.3 (Audio/Video Remote Control Profile).
Note: Due to the differences in Bluetooth technology, some
Bluetooth enabled devices may be incompatible, function improperly, or may
not support all features when used with the Kenwood KMM-BT308U. Visit
Kenwood's Support Site for a complete list of compatible Bluetooth
Secure Simple Pairing (SSP) + Auto Pairing (for iPhone):
With Secure Simple Pairing (SSP), you can easily pair a Bluetooth enabled phone
to the Kenwood KMM-BT308U without having to enter pin codes or go through
complicated settings. When a paired Bluetooth device is in close proximity to
the receiver, the auto connection function automatically pairs the two units.
You can pair up to five Bluetooth-enabled devices to the Kenwood head unit with
a maximum of two Bluetooth phones and one Bluetooth audio player connected at
one time (but only one can be used at a time). You can even pair your Apple
iPhone by simply connecting it to the Kenwood head unit via USB and following a
single prompt on the head unit's display.
Bluetooth Hands-Free Communication: The head unit supports
Bluetooth hands-free communication for your Bluetooth enabled mobile phone. The
controls of the KMM-BT308U can be used to dial a number, answer an in-coming
call, or end a call. The unit also includes an external microphone (featuring
adjustable gain), so you can carry on your side of the conversation while
listening to the caller through your vehicles speakers. During a conversation,
you can switch between the Private Mode (talking directly on your cell phone)
and the Hands Free Mode.
- Answering a Call: When a call comes in, a ring-tone
will be heard through your vehicle's speaker and the caller's name or phone
number will be displayed. You can answer the call from the head unit's
front-panel controls, or setup the head unit to automatically answer the
incoming call immediately or after 1-30 seconds. The KMM-BT308U also
supports the Call Waiting function, so you can answer another incoming call
while suspending the current call you are on. Your compatible cell-phone
must also support this feature.
- Dialing a Number: Using the KMM-BT308U, you can dial a
phone number in one of the following ways:
- Entering a Phone Number: Allows you to directly
dial a phone number up to 32 digits from the head unit's control knob or
- Speed (Preset) Dialing: Allows you to register up
to 6 phone numbers for quick dialing. The preset numbers can be accessed
from the head unit's Control Knob.
- Phone Book: You can dial by using the downloaded
phone book. You can download phone book data from your cell phone to the
KMM-BT308U. Up to 600 numbers can be stored for each registered cell
phone. Each number can be up to 32 digits long and each name can be up
to 50 characters long. Stored phone numbers can be categorized by
General, Home, Office, Mobile, or Other. You can search each category of
the phone book in alphabetical order.
- Call History: The Call History is a list of calls
that have originated from and were received by this unit that you can
dial. You can select Outgoing, Incoming, or Missed calls.
- Voice Dialing: If your mobile phone supports voice
recognition, then you can dial out by voice command. Simply speak into
the included microphone.
Note: The external wired microphone offers improved
audio quality versus an integrated microphone, so you can be heard easier
over noisy traffic and road noise. You can adjust the volume level and noise
cancellation of the microphone without affecting the other sources. The
external microphone features an attached 10' cable terminated by a
right-angle 3.5mm connector which plugs into the mic input on the rear-panel
of the head unit. The microphone offers an integrated mounting bracket which
can be clipped to your vehicle's sun-visor or taped to your dash. The
external microphone measures 0.525" (diameter) x 1.505" (depth).
SMS: If your Bluetooth enabled mobile phone is compatible
with SMS (Short Message Service), the Kenwood head unit will notify you when a
message has been received. You must then use your phone to check the message.
You cannot read, edit, or send a message through this unit.
Wireless Audio Streaming (w/ Metadata Display): The Kenwood
KMM-BT308U also supports wireless audio playback (AD2P) and control (AVRCP) of a
Bluetooth enabled audio player or smartphone. The KMM-BT308U will be able to
control basic playback functions of your Bluetooth device's stored music; such
as Play/Pause, Skip Next/Previous, Fast Forward/Rewind and Random/Repeat. The
head unit will also display your stored music's song information; such as Artist
name and Song/Album title. The KMM-BT308U also supports audio streaming of music
apps downloaded on your smartphone with metadata display and limited control.
Advanced music control of your music apps will still need be done via your
Bluetooth-enabled smartphone. When an incoming call or outgoing call is in
progress from your Bluetooth enabled mobile phone, audio streaming will be
paused so you can take your call. Once the call is finished, your streaming
music will resume.
Siri Eyes Free Control: When paired and connected with an
iPhone 4S or 5/5C/5S via Bluetooth (not USB), the Kenwood KMM-BT308U has the
ability to access Siri through its front-panel controls and external microphone.
Simply press-and-hold down on the head unit's Answer Button to engage Siri and
use the included microphone to communicate with Siri. Siri's voice will heard
through your vehicle's speakers. All Siri functions including hands-free
calling, music search, setting reminders, text-messaging, audible navigation,
and more can be done through the KMM-BT308U and its microphone. The head unit's
display will only indicate hands-free calling and Bluetooth audio information
(all other functions of Siri are only audible through the Kenwood KMM-BT308U;
visual data will still need to be viewed from your iPhone device).
Note: You can ask Siri to get directions to a destination
and the turn-by-turn instructions will heard through your vehicle's
speakers, while the on-screen map still displays on your iPhone 4S/5/5C/5S.
The head unit's audio is attenuated while Siri provides audible directions.
USB Port: The Kenwood KMM-BT308U features a front panel USB
(type-A) port that is hidden behind a flip-up cover. The USB port enables
connection and control of a portable USB mass-storage class (MSC) devices; such
as select Android smartphones (Froyo/Gingerbread OS only), portable digital audio players, or USB thumbdrives.
The unit supports playback of MP3, WMA, WAV, and FLAC music files
stored on a compatible USB memory device formatted with FAT file system. USB portable audio players that can be charged via USB will be
charged when plugged into the digital media receiver's USB port (max. 1A), and the vehicle's ignition
switch is set to ACC or On.
|Media Type ||Description|
|Playable File Types|| MP3:
bit rate of 8-320 kbps w/ sampling rate of 8-48 kHz|
WMA: bit rate of 32-192 kbps w/ sampling rate of
WAV: bit rate of 16-bit w/ sampling rate of 44.1
FLAC: bit rate of 16-bit w/ sampling rate of 8-48 kHz
|Maximum # of Folders/Files||999 folders/20,480
(999 files per folder)|
(ver.1.0/1.1/2.2/2.3/2.4), WMA, WAV, and Flac tags|
Note: When a mass-storage class (MSC) compatible
smartphone is connected to the head unit's USB input, the unit's Drive
Change features lets you select its internal memory or external memory (such
as an SD card) for stored music playback. The Drive Change feature also lets
you switch between multiple memory cards (up to 5) in a USB multi-card
reader or multiple USB thumbdrives (up to 5) connected to a USB hub.
Music Control for Android Smartphone: The Kenwood Music
Control app for Android organizes your Android smartphone's music, while
providing quick and easy search capability from the Kenwood digital media
receiver. The free
Kenwood Music Control App for Android can be downloaded onto your Android
smartphone from the Google Play App Store. Your Android smartphone must be
running Android OS Froyo or Gingerbread (2.2+). Once the app is downloaded and
has a chance to organize all the stored music on your Android smartphone, you
can connect your Android smartphone to the Kenwood digital media receiver via
USB (your compatible Android smartphone must be recognized as a USB mass storage
class device; not compatible with MTP protocol). The Kenwood Music
Control app offers the following Android supported functions.
- Song Management: Music stored in your Android
smartphone can be navigated from the Kenwood digital media receiver. Songs can be
easily selected by searching for a Song title, Artist name, Album label, or
- Song Information Display: Song information such as
Artist name, Song title, and Album label are displayed on the connected
Kenwood digital media receiver.
- Mood Playlist: Playlists can be created by classifying
songs into categories by type of mood. Songs are analyzed and classified
into the following categories of moods - High Energy (Active/Powerful/Core),
Acoustic (Detailed/Simple/Smooth/Easy), Standard (Dynamic/Rockin/Vivid),
- Intro Skip: This function allows you to choose and
listen to only the hook-lines of songs stored in your Android smartphone.
Note: When the Kenwood Music Control app is first
downloaded it will require some time to populate all the music, so we
suggest doing this overnight.
Music Editor Compatible: The Kenwood KMM-BT308U supports the
PC application, Kenwood Music Editor Lite
Music Editor Lit (v1.1.0). Kenwood Music Editor Lite is a Windows-based
desktop software that helps organize, manage and transfer MP3/WMA music files to
your USB thumbdrive from your PC. When you playback audio files that have been
stored on your USB thumbdrive using Kenwood Music Editor Lite through this unit,
you can search a file by title, album, or artist name using the head unit's
Music Search function. The Kenwood Music Editor Light (v1.1.0) Windows-based
software can be downloaded for free from Kenwood's website to your PC. The
Kenwood Music Editor Light is compatible with the following Windows Microsoft
- Windows XP Professional, Home Edition SP2 or later (32-bit)
- Windows Vista (32/64-bit)
- Windows 7 (32/64-bit)
- Windows 8
Note: Not compatible with Apple iPod/iPhone/iPad, Zune, or
Aux In: The unit is equipped with a front panel 3.5mm
minijack auxiliary input that can be used to input audio from a portable audio
source, such as a portable MP3 player. The Aux input must be turned on to
function. The KMM-BT308U allows you to select the source type displayed when using
the auxiliary input. You can choose from AUX, DVD, Portable, Game, Video, or TV.
The unit has three aux input modes.
iPod/iPhone + Aux Connectivity
iPod Direct Connection: The Kenwood KMM-BT308U's front-panel
USB port can be used to connect your 30-pin dock connector or
Lightning-connector iPod/iPhone to the head unit. The KMM-BT308U supports audio
playback, music navigation, information display, and charging of your compatible
- 30-Pin Dock Connector: If you have an older iPod/iPhone
with a 30-pin dock connector, you can use Kenwood's dock connector-to-USB
sold separately) or the dock connector-to-USB cable that comes with your
Apple device to connect your iPod/iPhone to the KMM-BT308U.
- Lightning Connector: If you have a newer iPod/iPhone
with the Lightning-connector, you can use the Lightning-to-USB cable that
came with your Apple device to connect your iPod/iPhone to the KMM-BT308U.
Note: The head unit's USB connection provides 1A of
current to power and charge your connected iPod/iPhone when your vehicle's
ignition switch is set to the 'ACC' or 'On' position (if your iPod/iPhone
has no initial battery charge, then the unit will not recognize it).
iPod Audio Playback w/ DAC Bypass: The USB connection allows
your iPod/iPhone's stored music and music apps to be loaded instantly to the
head unit and sound quality to be maximized through the head unit's 16-bit D/A
converter, allowing for a Signal to Noise ratio up to 105dB. The Kenwood head
unit supports audio playback of stored music, podcasts, audiobooks, and music
apps on your iPod or iPhone. The KMM-BT308U provides music control and song/artist
- Music Control: The Kenwood head unit allows you to
navigate your iPod's music by Playlist, Artists, Album, Genre, Composer,
Song, or Podcast. You can search these categories alphabetically (A-Z) or
using a percentage search (0.5%, 1%, 5%, 10%). The head unit also supports
Repeat (file) & Random (folder) playback functions of your connected iPod/iPhone.
Newer iPod/iPhones with iOS 6.0+ allow you to continue to access your Apple
device's touchscreen. Older iPod/iPhone devices will be locked during
- Song/Artist Info: The KMM-BT308U will display your iPod/iPhone's
music file information. The head unit will display Track number, Elapsed
playing time, Artist name, Song title, and Album label.
Apple Device Compatibility Chart: The Kenwood KMM-BT308U is
"Made for iPod/iPhone" compatible and supports the following iPod/iPhone model
features (as of 2/14/2014):
|Apple Device||Generation||Tested Version||Media Type||Control Type||Specific Apps||Display Type||Bluetooth||Charge|
|Audio||Video||Head Unit||iPod/iPhone||Pandora app||iHeart Link||Artist/Song Text||Track Info ||Phone||Audio||Siri|
Note: Apple iPod/iPhone software updates may change
functionality results. If you download a newer software version, you may
need to reset the head unit and your iPod/iPhone to regain functionality. If
this doesn't work, you may need to wait until a newer software update is
AM/FM & Internet Radio
RDS AM/FM Tuner: The Kenwood KMM-BT308U features a built-in RDS
AM/FM tuner. The Radio Data System (RDS) feature displays radio broadcast
information such as artist & track information when listening to compatible
AM/FM stations. You can choose one of four tuning methods: Auto 1 (seek tuning),
Auto 2 (cycles through and tunes the selected band's preset stations only with
each button press), or Manual Tune. The KMM-BT308U's tuner features 3 FM banks
(1, 2, 3) and 1 AM bank for storing presets. The Kenwood KMM-BT308U offers two
- Normal: You can store 6 presets for each AM/FM bank
giving you a total of 18 FM presets and 6 AM presets (total of 24).
- Mix: A total of 6 preset stations can be assigned to
the head unit's 6 preset buttons, regardless of AM/FM band. This lets you
recall a preset station without switching between bands.
Note: Not only does the digital media receiver's tuner allow you
manually enter your desired presets you can choose to have the unit
automatically put stations with good reception in the memory banks
automatically; this is a handy feature when traveling.
Internet Radio Apps: The Kenwood KMM-BT308U allows you to
access Pandora andiHeartRadio online music
services through your USB-connected iPhone or Bluetooth-connected
Android/Blackberry smartphone. Your Apple iPhone must be connected to the
KMM-BT308U via the Kenwood KCA-iP102 cable (sold separately, or the cable
supplied with your iPhone. Your Android or Blackberry smartphone must support
A2DP/ AVRCP/SPP Bluetooth profiles and be paired with the Kenwood KMM-BT308U.
Your iPhone, Android smartphone, or Blackberry device will need an active Data
Plan account with connection to the Internet via 3G, EDGE, or WiFi.
- Pandora App (for iPhone/Android/Blackberry): The free
Pandora App (either from
Google Play, or
BlackBerry App World) lets you play music from the Pandora music service
through the Kenwood KMM-BT308U using your USB-connected Apple iPhone (iOS
5.0+) or Bluetooth paired Android/Blackberry smartphone. The Kenwood
KMM-BT308U provides control over the Pandora music service and displays
Artist, Album, and Song information. You can select Pandora stations from
your station list and sort them by date or alphabetically (A-Z). New
stations can be created based on the current songs or artists playing. You
can also save 3 Pandora stations as presets. You can also skip song tracks
within a station. You can even give songs a thumbs up or thumbs down. An
active Pandora account is required.
- iHeartRadio Link (for iPhone/Android): The free
iHeartRadio Link app for Kenwood (either from
iTunes Apps or
Google Play) lets you play music from the iHeartRadio music service
through the Kenwood KMM-BT308U using your USB-connected Apple iPhone (iOS
5.0+), or Bluetooth paired Android smartphone (2.2+). The iHeartRadio music
service provides access to more than 1,500 live radio stations from
coast-to-coast (including pop, country, urban, rock, talk, and sports). The
KMM-BT308U will provide control over the iHeartRadio Link app, as well as
display station identification and song/artist information. From the head
unit's front-panel controls, iHeartRadio stations can be searched by the
following categories (Local, Genre, City, or My Stations). TheLocal selection provides a list of radio stations in your local
listening area. The unit also provides over 22 Genres to choose from
(including pop, country, hip-hop, jazz, etc.) to help you find the right
radio station for you. In addition, you can search for radio stations by
City. Cities can be searched alphabetically (A-Z). You can even store
your favorite stations (My Stations) for easier, quicker access. An
active iHeartRadio account is required.
Note: Access to these Internet Radio services will depend
on the availability of a cellular and/or WiFi network for purposes of
allowing your iPhone or Android/Blackberry smartphone to connect to the
Internet. Not supported in Canada and only available in the United States.
16 Bit D/A Converter: The Kenwood KMM-BT308U utilizes a 16-bit
digital to analog converter for superior sound quality.
MOSFET Amplifier: The Kenwood KMM-BT308U is equipped with a
MOSFET amplifier. Compared to conventional power supplies, the MOSFET
amplification circuit is smaller and more efficient, and it delivers increased
power with less distortion and absolutely zero on/off switching noise. More
power means louder and cleaner music at higher volumes because you're not
pushing the limits of the amplification circuit. The power output specs for the
KMM-BT308U are as follows:
- Full Bandwidth Power: 22 watts RMS x 4 channels (at 4
ohms, 20-20kHz, 1% THD)
- Maximum Output Power: 50 watts x 4 channels
2Ch/2.5V Preamp Output + Sub Control: The KMM-BT308U
features a 2.5-volt stereo preamp output that you can be adjusted from a full-range rear speaker
output to a low-pass subwoofer preamp output. The Kenwood KMM-BT308U offers the following subwoofer controls, when you have the
unit's preamp output configured as a sub output.
- Low Pass Filter: The receiver
features a built-in Low Pass Filter control for the preamp-output, when the
output is set to Subwoofer. You can select from 85 Hz, 120 Hz, 160 Hz, or off.
- Subwoofer Phase: You can adjust the phase of the
subwoofer output between 180-degrees (Reverse) or 0-degrees (Normal).
- Subwoofer Level: Once the Subwoofer preamp output is
activated, you can independently control the
subwoofer preamp output level (-15 to +15) from the digital media receiver.
Speaker Settings: The Speaker
Setting function tailors the head unit's audio settings according to the
type of speakers in your vehicle. You may select a Speaker Setting of 'SP-Off'
(flat/off), 'SP-OEM' (for OEM factory speaker systems), 'SP-6x9/6' (for systems with 6"
and 6"x9" speakers), or 'SP-5/4' (for systems with 4" and 5" speakers).
Preset EQ: Eight EQ curves are preset into memory, allowing
you to recall the best preset EQ curve for different types of music. Each preset
has its own level settings for bass, midrange, and treble . You can choose from
the following preset EQ curves; Rock, Pops, Easy, Top 40, Jazz, Natural, Drive
EQ, or User. The Drive EQ mode is an EQ preset that helps reduce road noise. The
User mode allows you to manually adjust the head unit's Bass (200Hz) , Midrange
(2.5kHz), and Treble (12.5kHz) level from +/- 8dB.
Note: You can store bass, middle and treble tone settings for each source (Tuner, Aux, USB, iPod,
Bluetooth, and Pandora/iHeartRadio).
Sound Enhancements: The head unit provides further sound
enhancements for your car audio system.
- Bass Boost: The Kenwood receiver features a Bass Boost
control that can be set to the following levels (BB1, BB2, BB3, or Off).
- Loudness: This function enhances low and high
frequencies to make the sound clearer lower volumes. There are 3 levels
(LV1, LV2, or Off).
- Sound Reconstruction: When MP3 or WMA files encoded at
a low bit rate (less than 96 kbps, 44.1k, 48kHz) are played, the Sound
Reconstruction function restores their high frequencies so the sound quality
is closer to files encoded at a high bit rate. The processing is optimized
for the compression format and the bit rate used. When Sound Reconstruction
is Off, the unit plays the original sound stored in the audio file.
Volume Offset: The level of each source may be independently
adjusted to prevent radical leaps in output volume when switching from one
source to another. The available settings range from -8 to 0 (-8 to +8 for Aux
Key Beep: The in-dash head unit provides an audible beep to
confirm button operation. This function can be turned On or Off.
Display & Remote Features
The Kenwood KMM-BT308U features detachable face plate to deter theft. There is no protective face case included. An optional soft face case (142DFC1X,
sold separately) can be purchased for this unit. A face-fixing screw is supplied
for making the face non-detachable, if desired.
Single-Line LCD: The Kenwood head unit features a
single-line, 13-segment, backlit LCD with white text and black background, plus
- 12Hr/24Hr Clock: The head unit can be set to display a
12hr or 24hr clock. The unit also displays the day (Sun, Mon, Tue, Wed, Thu,
Fri, or Sat).
- Display Illumination/Clock
Display: With your vehicle's key in the accessory or start position,
the head unit continues to display the clock and button illumination during
Standby mode. Pressing and holding the source button turns the unit off
- Brightness & Dimmer: You can dim the LCD and button
illumination to better suit the time of day. You can adjust the maximum
brightness of the LCD and button illumination from 0-31. The Kenwood logo
does not dim.
Note: This unit features a Demo mode which can be turned On or Off within
Wireless Remote Control: The KMM-BT308U comes with an IR
remote control (RC-406) for wireless operation of the head unit. The remote will
control Audio, USB, iPod, and Tuner functions. It is powered by a single CR2025 3V
lithium-cell battery (supplied).
- Numeric Keypad: The wireless remote control features a
numeric keypad (0-9) which allows direct track access of your music tracks &
files from USB, as well as AM/FM presets.
- Attenuator: The digital media receiver features an Attenuator button on
the supplied remote control that turns the volume down very quickly with one
touch of the button.
Steering Wheel Remote Compatibility: The head unit features
an OEM steering wheel remote control input wire (blue/yellow) within the
included wiring harness that lets you keep your vehicle's factory radio steering
wheel remote controls when used with an optional
steering wheel audio control adapter (sold separately). Please consult
Outfit My Car to see if your vehicle is compatible.