Discount Car Stereo C6-HF User manual

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C6-HF
QuickStartBluetoothInstallGuideforC6CorvettewithXMTunerModule
Created: July 17, 2016
Revised December 27, 2019

Introduction:
If your C6 has an XM Tuner (with or without subscription) and interested in
adding Bluetooth capabilities without changing factory radio you should consider
adding the C6-HF. Safety comes first when you’re on the road, so having an
intuitive and easy to use Bluetooth kit is essential to reducing driver distraction.
The C6-HF kit is compatible with virtually all Bluetooth phones, and sounds great
whether using it for mobile conversations, streaming music or listening to XM (if
subscribed). In addition, a USB charging port is included to charge devices. One
button (with built-in microphone) conveniently installed on the dash is used to
launch Voice recognition application (Siri, Google Now, Assistant etc.), initiate
phone calls, and switch between sources (e.g. Bluetooth and XM). Thanks to the
C6-HF Kit you can keep factory radio and XM Subscription while enjoying
Bluetooth features only available on newer cars.
See Frequent Asked question at the end of this guide.
Installation 1: (Coupes and T-Tops)
The required XM tuner module is located in rear quarter panel (driver side)
1. Pry up and remove panel
2. Pull carpet out to reveal tuner
3. Disconnect factory 16-pin plug (See Fig. 1) from XM module (See Fig. 2)
To release plug, pull back blue locking tab, press and hold black release
tab, gasp lug and release from chamber (do not pull wires).
Fig. 1
16-pin plug
Fig. 2
XM tuner module
4. Connect 16-pin factory plug installation harness 16-pin connector (See
Fig. 3)

Fig. 3
installation harness 16-pin connector
5. Connect installation harness 16-pin plug (See Fig. 1) to XM module.
.Retaining XM Playback (Active subscription):
1. Connect installation harness straight angle 3.5mm plug (See Fig. 4) to
module input jack labeled “XM/AUX”(See Fig. 5)
Fig. 4
2. Connect installation harness right angle 3.5mm plug (See Fig. 4) to module
short pigtail jack (See Fig. 6). Proceed to step 6
AUX input (Expired subscription):
If XM has expired with no plans to activate, it is possible to connect and play
an auxiliary device (Mp3 player, iPod etc.) on the car system. With this
option XM playback is inhibited, however XM Tuner is still required and
remains connected.
Noteworthy: The C6-HF module is capable of retaining XM subscription or
provide an Aux input (one or the other; not both)
1. Connect installation harness right angle 3.5mm plug (See Fig. 4) to module
short pigtail jack (See Fig. 6).
2. Connect included 3.5mm male-male cable (See Fig. 7) to module input jack
labeled “XM/AUX” (See Fig. 5), and route other end to front of dash or
where aux device will reside (within 3 ft.)
Fig. 5
Bluetooth module
Fig. 6
pigtail jack

Fig. 7
3.5male to male audio cable
6. Route installation harness red wire to fuse panel under passenger
floor board and tap to included Add-A-Fuse circuit (See Fig.8). Locate
an accessory supply fuse (see suggestions below) for the Add-A-Fuse
circuit. Accessory supply voltage ensures module turns “ON” and
available only when vehicle is in operation.
C6 fuse panel in passenger footwell
Fig. 8
We suggest one of the following fuse circuits: (circled in fuse fox diagram)
1. HTD Seat/WPR RLY (Heated Seat/Wiper Relay)
2. EXL DML (Exhaust Module)
3. WPR/WSW (Windshield Wiper/Washer)
Under no circumstances should accessory wire be connected to 12V
battery (always on) supply.
Warning: Due to the many factory options, accessory supply may inherently be
noisy (motors, sensors, modules etc.). If audio playback include noises (hum,
whine etc.), we recommend finding an alternate power supply location or adding
a noise filter
7. Connect push-to-talk button/microphone (See Fig. 9) to module input
jack labeled “MIC” (See Fig. 5)
Fig. 9
Control button/Microphone

8. Consider where to install control/mic button. Keep in mind the control
button must be within reach of the driver and facing driver for voice
commands and phone dialog (cable is 6ft. long). We recommend
completing the rest of the install prior to securing the
control/mic button to the dash. Once you decide on a location simply
remove tape backing from control /mic button
INSTALLATION 2: (convertibles)
Required XM module located in console rear end between seats.
1. Remove two 15mm Torx screws from cover
2. Remove 3 plastic pins holding from carpet panel
3. Complete the rest of the install by returning to step 3 above.
4. Secure module and proceed to next section.
USB CHARGING PORT
Module includes a USB Charging port. Should you decide to use it, we suggest
one of 3 connecting options:
A. Flush to dash/panel requires drilling a ¾” hole in the dash
B. Flush with Support bracket (use this option to mount USB terminal
wherever your installation demands without drilling)
C. No Mount- (default)
A. Flush to Dash or Panel (drilling required)
1. Drill a ¾” hole in the dash or panel using a step drill bit or equivalent
(See Fig. 10)
Fig. 10
Step drill bit
2. Insert the 3ft. USB cable male terminal (See Fig. 11) through the ¾”
hole created in step 1 and plug into USB port on module (See Fig. 11)
Fig. 11
Flush mount 3 ft. USB cable

Fig. 12
Module USB port
3. Push USB (See Fig. 13) until it snaps in place and flush with mounting
surface (See Fig. 14)
Fig. 13
Flush mount USB Terminal
Fig. 14
Flush mounted to dash
4. Tuck and secure any extra wire from moving parts and test operation
B. USB with Bracket Mount (No drilling)
1. Locate a flat surface at location of choice within 3.2 ft. of radio and
mount USB support bracket (See Fig. 15) to surface using
adhesive/tape or screws.
Fig. 15
USB mounting bracket
2. Insert USB male terminal through hole in bracket (See Fig. 16) and
connect to USB port on Module (See Fig. 4)
Fig. 16
3. Push USB head until it snaps in place and flush (See Fig. 17)
Fig. 17
4. Secure USB to dash with screws (included) or adhesive.

5. Tuck and secure any extra wire away from moving parts and test
operation ( See Bluetooth Pairing and Connection )
Bluetooth Pairing and Connection
This process is required the very first time you use the C6-HF. After initial
pairing, the C6-HF will automatically reconnect with the paired phone upon
entering vehicle.
1. Turn vehicle ignition to “ON”.
2. Red LED inside module will flash rapidly
3. Access Smartphone Bluetooth menu settings, and search (scan) for
devices.
4. Select G2 and click “Connect” or “Pair”
Note: Supports multiple phones but connects to one phone at a time.
Warning! Caller ID and text display are not possible on radio screen. Operate
Bluetooth device by pressing control button or Voice Recognition application.
Use factory radio volume button to control playback level.
Bluetooth Operation
1. Turn ignition and radio “ON”
2. Press “XM” or “BAND” button on radio to enter XM mode. (Bluetooth
mode)
3. Use radio volume button to set playback level
Music Commands
To
Proceed this way
Pause a Song
Press and release button
Resume Play
Press and release button
Skip to next song
Press button twice
Skip to Previous Song
Press button 3 times
Activate AUX or XM Playback*
Press button 4 times
Activate Voice Control
Press/hold button for 2 seconds
Switch out of AUX/XM Mode
Press and release button
Phone Commands
To
Proceed this way
Answer call
Press and release button
End call
Press and release button
Reject incoming call
Press button twice (send call to Voice Mail)
Cancel outgoing call
Press button twice
Activate Voice Control
Press/hold button for 2 seconds
Notes:
1. If playback is distorted, adjust volume on Bluetooth device.
2. To reset Module press and Hold button for 5 seconds (this will not
un-pair phone or erase stored phones)
3. On incoming calls, ring tone will play on car speakers

4. Bluetooth range is approximately 30 ft. make sure device is within
range of receiver
5. Voice command compatible with Apple (Siri), Android (Google Now),
Blackberry (Assistant)
6. * push-to-talk button does not control XM/Aux functions. Use radio
buttons for XM controls as customary or AUX device buttons for music
selection and controls.
This concludes the installation of the C6-HF. Enjoy!!!
Frequent asked questions
1. My vehicle has a Navigation radio, will the C6-HF work?
YES. Regardless of factory radio format, the C6-HF requires XM Tuner
module to work.
2. My XM subscription has expired, will the C6-HF work?
YES;so long vehicle has XM module.
3. I’m not the original owner and don’t know if vehicle has XM module.
How can I find out without ripping the car apart?
Turn radio “ON”, press “BAND” or “XM” button repeatedly as radio cycle
through AM, FM, XM. If only AM, FM is displayed, your vehicle does not
have XM module. See Question 4.
4. My radio is XM ready but vehicle does not have an XM module. Will the
-C6-HF work?
NO; XM ready means radio is capable of controlling optional XM Tuner but
tuner is not currently installed. Early C6 were pre-wired for this option, but
for the C6-HF to work, vehicle must have an XM Tuner module (with or
without subscription).
5. Why do I have run a +12V accessory wire to fuse box?
There is no 12V accessory supply on the XM Tuner plug, therefore accessory
power must be obtained elsewhere. The C6-HF requires accessory power
so not to drain the car battery etc.
6. My 2006 C6 does not have XM tuner nor wired for it. What can I do to
get the C6-HF Module to work?
In 2006-07 C6 XM was optional and some may not be wired for factory XM
Tuner. In order to retrofit XM, you will need an installation harness, XM
tuner and antenna (antenna not required if installing XM Tuner for the
purposes of installing the C6-HF)
Installing a brand-new tuner, will require programming, however, installing
a used tuner does not require programming but must be “unlocked”.

7. Will I be able to control Bluetooth functions from radio buttons?
NO; the radio buttons do NOT control the C6-HF. You must use audio device
built-in control or push-to-talk button supplied with module.
Disclaimer
• This product has no affiliation with GM.
• We’re not liable for misuse of this product.
•We recommend professional installation.
Email [email protected]
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