Operators Guide GMR-2.
Congratulations on your choice of GMR-2.5 AM/FM Bluetooth Source Unit by MB Quart. For more detailed information about the product, please visit our website at www.MBQuart.com CAUTION Always consider consulting a professional audio installer before installing any audio components. Be careful and take your time. Do not let wires make contact with metal edges or hot engine components.
Wiring & Mounting Radio Antenna USB Connector Red - Rear RCA Output (R) White - Rear RCA Output (L) Red - RCA Input (R) White - RCA Input (L) Accesory +12 Volts White - Front Left (+) White/Black - Front Left (-) Gray - Front Right (+) Gray/Black - Front Right (-) Green - Rear Left (+) Green/Black - Rear Left (-) Purple - Rear Right (+) Purple/Black - Rear Right (-) Black - Ground (-) Blue - Remote Output Cut Out Diameter: 3” / 76.
1 2 5 6 3 4 7 Controls 1 POWER Button -Press the POWER button to power on the unit. -Press the POWER button to mute the audio. -Press and hold the POWER button to power the unit off. 2 VOL+ Button -Press the VOL+ button to increase the volume. 3 VOL- Button -Press the VOL- button to decrease the volume. 4 ▲ Button -Press the ▲ button to track up. 5 ▼ Button -Press the ▼ button to track down. 6 BAND ►|| Button -Press the BAND button to switch between AM & FM in Radio mode.
Basic Operation Radio (AM/FM) Operation -Press BAND button to switch between AM & FM. -Press the ▲ or ▼ buttons less than 2 seconds to automatically seek the next / previous strong radio stations. Apple Control / USB / MP3 Operation -Insert a USB device and the unit will read the music files automatically. -Press the ▲ or ▼ buttons to play next / previous song. -Press and hold the ▲ or ▼ buttons for more than 2 seconds to fast forward / rewind the song.
Adjustment Menu To access the Adjustment menu press and hold the MODE button for 2 seconds and then press the MODE button to switch between BAS / TRE / FAD / LOUD / EQ / AREA USA-EUR / TIME MODE / BEEP. Equalization (EQ) -Use the VOLUME buttons to select EQ as FLAT, CLASSIC, POP or ROCK. Default setting is “OFF.” Area Tuning -This option allows you to select the appropriate frequency spacing for your location (USA or Europe). -Use the VOLUME buttons to switch between USA and Europe frequencies.
Diagnostics & Trouble Shooting Problem Cause Solution No power 1. Incorrect wiring 2. Fuse is blown 3. The wiring harness is not connected 1. Re-check wiring 2. Replace fuse 3. Re-check wiring harness connection No sound 1. Volume is too low 2. Speaker connection loose or wired incorrectly 1. Increase volume 2. Double check connection and re-attach No reception 1. The antenna cable is not connected 2. The signals are too weak 1. Insert the antenna cable securely 2.
FCC Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a mobile installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
