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Feature comparison 

Bluetooth profiles; namely Hands-free calling (See Table 1) and music streaming 
(A2DP). Music streaming kits (See Table2) 

Table 1 

Modules 

A2DIY-C5CD

 

C5CD-HF

  A2DIY-C5 

C5-HF

 

Retains changer playback 

YES

 

YES*

 

NO

 

NO 

Requires working CD changer 

YES

 

YES 

NO

 

NO 

Audio input jack (Aux in) 

YES*

 

YES

 

YES 

USB charging port 

YES* 

YES

 

YES* 

YES 

Hands-free calling (HPF) 

YES

 

YES 

YES

 

YES 

Music Streaming (A2DP) 

YES 

YES 

YES 

YES 

Connects behind radio  

YES 

YES 

YES 

YES 

Connects in trunk/hatch 

NO 

NO 

NO 

NO 

Voice recognition support 

YES

 

YES 

YES

 

YES 

Remote control 

YES 

$

 

YES 

$

 

Controls from radio buttons 

NO 

NO 

NO 

NO 

 

Table 2 

Modules 

A2D-C5

 

BLU-C5

 

Retains changer playback 

YES

 

NO 

Requires working CD changer 

YES 

NO 

Audio input jack (Aux in) 

NO

 

NO 

USB charging port 

Optional 

Optional 

Hands-free calling (HPF

NO 

NO 

Music Streaming (A2DP) 

YES

 

YES 

Connects behind radio 

YES 

YES 

Connects in trunk/hatch 

YES 

NO 

VR support (e.g., Siri) 

YES** 

YES** 

Wireless remote control 

Optional 

Optional 

Controls from radio buttons 

NO 

NO 

*

Optional (Select from product order page) 

** Voice recognition possible with optional remote 
$ Optiona

BLU-MB

 media button

 

 

Frequent ask questions & troubleshooting 

 

1.

 

What’s the difference between the C5-HF and C5CD-HF? 

The only difference is the 

12-disc changer requirement. The C5CD-HF 

requires a functioning 12-disc changer and the C5-HF does not. The 
C5-HF also works in vehicles with 12-disc changer but it must be 
disconnected.

 

2.

 

My C5 has a functioning 12-disc changer. Will the C5-HF work? 

12-disc changer (if present) must be disconnected. Purchase our 

A2DIY-

C5CD

 or  

C5CD-HF

 to retain 12-disc changer operation. 

3.

 

Why is it necessary to run 12V Acc. wire to fuse panel? 

Modules purchased after 8/31 no longer require this step.

 

4.

 

Can I control Smartphone music selection etc. from radio buttons? 
NO;

 

you must use Smartphone built-in controls, push button and/or 

voice commands to operate device.

 Radio volume knob is used to set 

playback level. 

5.

 

Does radio display song, track or caller name/number? 
NO;

 

this is not possible on the C5 radio.  

6.

 

How to I reset Bluetooth module?

 

Press and hold push button for 5 seconds.  

7.

 

I connected a satellite radio kit to module “AUX” input jack, but unable 
to hear it. Please help 

Press AUX button on radio to enter Bluetooth mode, then 

press push 

button 4 times. 

At this point XM should play. To return to music stream 

press and release push button.

 

8.

 

Where is the best place to install push button/microphone?

 

Having push button/mic mounted higher on the dash works best, but users 
can experiment with different location and decide. 

9.

 

Will radio mute when I receive or make a phone call? 

Muting is possible only if radio is in “AUX” (Bluetooth) mode. If in AM/FM or 
CD/Tape mode, muting is not possible. To be connected with caller, press 
AUX button on radio and single press push button

 

10.

 

My second phone does not pair or find module? 

In order to pair phone make sure no other phones are connected. Once 
Bluetooth is turned off, the module will be ready for pairing.  

Summary of Contents for C5-HF

Page 1: ...untCarStereo com Serving the internet community since 1995 Newest version 11 19 20 C5 HF QUICKSTARTBLUETOOTHINSTALLATIONGUIDEFORSELECT 1997 04CORVETTEWITHOUT12 DISCCHANGER Created Februa 19 2013 Revised September 2 2021 ...

Page 2: ... sounds great for mobile conversations streaming music or AUX device In addition a USB Fast charging port is included to keep devices charged while on the road A push button with built in microphone conveniently installed on the dash is used to launch Voice recognition applications Siri Google Now Assistant etc initiate end phone calls launch applications and more Note This kit works in C5 without...

Page 3: ...in connector vacated in step 1 4 Connect included 3 5mm male male cable See Fig 3 to AUX input jack on module See Fig 4 Other end connects to AUX device within 3 ft Fig 3 Fig 4 5 Connect installation harness 22 pin plug See Fig 2 to module 22 pin connector See Fig 5 6 Connect push button with built in microphone See Fig 6 to module MIC CTR input jack See Fig 4 Fig 5 Fig 6 push button Microphone ...

Page 4: ...SB port installation An updated SMART USB charging port has been added to module which charges based on device current demands and used for charging only Not for thumb drives etc A Flush to dash panel requires drilling a hole in the dash B Flush with Support bracket use this option to mount USB terminal wherever your installation demands without drilling A Flush to Dash or Panel drilling required ...

Page 5: ...at surface at location of choice within 3 2 ft of radio and mount USB support bracket See Fig 15 to surface with 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...

Page 6: ... 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 Playback Press button 4 times Activate Voice Control Press hold button for 2 seconds Switch out of XM Mode Press and release button Phone Commands Push button must be used for the following phone commands To Pro...

Page 7: ...r but it must be disconnected 2 My C5 has a functioning 12 disc changer Will the C5 HF work 12 disc changer if present must be disconnected Purchase our A2DIY C5CD or C5CD HF to retain 12 disc changer operation 3 Why is it necessary to run 12V Acc wire to fuse panel Modules purchased after 8 31 no longer require this step 4 Can I control Smartphone music selection etc from radio buttons NO you mus...

Page 8: ... www youtube com watch v WTbWYNJTSDs 12 I have installed the kit as directed but radio does not enter AUX mode What could be wrong We recommend resetting system as follows 1 Disconnect car battery or 20 pin plug from radio See Fig 1 2 After 10 15 minutes reconnect car battery or radio s 20 pin plug whichever was initially disconnected 3 Press AUX button on radio and if all went well radio should n...

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