[DIY] Adding Aux-In Kenwood Head Units


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Dedicating this to all Kenwoodians who don't have an Aux-in port in their Kenwood HU. This is connected via CD changer route.

Before starting, first check whether there is RCA Aux-in port behind the HU. If yes, if would be disabled in the menu by default. To enable it, put the HU in standby, press hold the menu button. Then comes a setting menu, scroll for AUX, select and turn ON. You just need a 3.5 mm to RCA cable. Did this in old Kenwood HU in friend's ZEN. Only issue, it will go back to default off whenever battery is disconnected.

If no, rear RCA-in proceed with this DIY. Will work with any Kenwood HU with external CD changer connector.


Items required:
1. 13-pin DIN connector (yet to find this)
2. 10k resistor
3. 3.5-mm female socket + 2-core shielded wire
OR
Cut out the female end of a 3.5mm extension cable.
4. 3.5mm-3.5mm cable

Rough pin-out diagram of the port

2013-09-01 08-02-41_resize.jpg

Connections:
Connect 10k resistor across pin 3 and 9.
Pin 6- Audio Ground
Pin 8 - Right Channel In
Pin 12 - Left Channel In


Test whether this function is working in your HU before proceeding further. Just put in a 10k resistor across pin 3 and 9.

2013-08-31 16-28-54_resize.jpg

And check whether CD-changer/External Aux-in appears in the Source Select menu.

2013-08-31 16-27-39_resize.jpg

NB: Couldn't find the required 13-pin connector, so this one is an Indian style Jugaad DIY. If you could source such a connector, solder everything into the connector.

3.5mm extension cable.

2013-08-31 17-04-44_resize.jpg

Cut away the female side and solder leads (or solder to respective pin in 13-pin connector )

2013-08-31 17-09-43_resize.jpg

10 kohm resistor (Brown-Black-Orange)

2013-08-31 17-10-13_resize.jpg

Make connections (In case of 13 pin connector, just plug in after making the required connections)

2013-08-31 17-15-18_resize.jpg

Tie it up to the HU, so that the someone wont screw up the connections later.

2013-08-31 17-15-33_resize.jpg

Place the cable end at some convenient location. (You could use the male connector here, but a hanging connector can screw up your HU, so safer to use female end and use a removable 3.5mm - 3.5mm cable)

2013-08-31 18-11-32_resize.jpg

3.5mm-3.5mm cable

2013-08-31 18-12-08_resize.jpg

Connect to your custom aux port, connect to any of your device.

2013-08-31 18-13-24_resize.jpg

Select Aux.

2013-08-31 18-13-51_resize.jpg

Enjoy

wp_ss_20130831_0003_resize.png


PS: For those who don't wanna take headaches, Kenwood OE Aux-CD changer adapter is available in ebay US, dealextreme, etc.
 
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deville_56,

Thank you for this incredible tutorial, I have a question regarding a similar modification but there are a few differences with my setup. If you're willing, here is my setup and if you have suggestions I would really REALLY appreciate it.


2003 Mitsubishi Outlander
Infinity Audio Stereo head P004 (MITSUBISHI P004 MR587387)
No 6 disc changer.

This is the link to a tutorial that is close to what I hoped to do. However, they have a 6 disc changer in addition to my exact set-up. So they just had to splice in the left and right and ground into the 13 pin line.

Additionally, I found a guy with a similar issue of no 6 disc changer here. He used another method to attach an audio cable directly to the 13 pin connector (which has the same pin layout as mine according to this web site.

However I've soldered my paper clips to the ends of my audio cable and plugged them in in the same was as he did here.

After plugging these into the correct holes like it shows here, I'm still unable to get my stereo into Auxiliary mode by holding down the CD button according to the tutorials I've read for my Infinity Audio Stereo head P004 (MITSUBISHI P004 MR587387).

I wonder if I might need to route a resistor into two holes similar to your setup but I can't figure out which holes.

As far as I can tell, this is your kenwood pinout, and again, this is my pinout. Can you help me determine if I need a resistor and if so which holes I should place it in?

I know this is a lot of detail but I'm just trying to help you with the work I've done so far.

If you can help me, I'd be SO grateful. If I'm in completely the wrong direction, just let me know. I am an amateur at car audio.
 
Thread Starter #4
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deville_56,

Thank you for this incredible tutorial, I have a question regarding a similar modification but there are a few differences with my setup. If you're willing, here is my setup and if you have suggestions I would really REALLY appreciate it.


2003 Mitsubishi Outlander
Infinity Audio Stereo head P004 (MITSUBISHI P004 MR587387)
No 6 disc changer.

This is the link to a tutorial that is close to what I hoped to do. However, they have a 6 disc changer in addition to my exact set-up. So they just had to splice in the left and right and ground into the 13 pin line.

Additionally, I found a guy with a similar issue of no 6 disc changer here. He used another method to attach an audio cable directly to the 13 pin connector (which has the same pin layout as mine according to this web site.

However I've soldered my paper clips to the ends of my audio cable and plugged them in in the same was as he did here.

After plugging these into the correct holes like it shows here, I'm still unable to get my stereo into Auxiliary mode by holding down the CD button according to the tutorials I've read for my Infinity Audio Stereo head P004 (MITSUBISHI P004 MR587387).

I wonder if I might need to route a resistor into two holes similar to your setup but I can't figure out which holes.

As far as I can tell, this is your kenwood pinout, and again, this is my pinout. Can you help me determine if I need a resistor and if so which holes I should place it in?

I know this is a lot of detail but I'm just trying to help you with the work I've done so far.

If you can help me, I'd be SO grateful. If I'm in completely the wrong direction, just let me know. I am an amateur at car audio.
No idea. Rather confusing [confused] Pinouts and protocol does not look similar.
 
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