Radio Harness Pin Outs?

**rayd** · 22-11-2009 12:07 PM

Originally Posted by EuroSteve

There is, pin 11 on the connector going into the back of the OEM HU. You'll need to cut it and connect it directly to your Yumcha (otherwise the steering wheel controls will control both units ;-).

HTH

-Steve

ok, but then wont that kill the volume function coz the volume is running through the OEM .... if i do splice into pin 11, and keep both connected will both work? and will the OEM dash buttons also run through pin 11?? Have you tried this?

~Ray

**EuroSteve** · 22-11-2009 12:29 PM

Originally Posted by rayd

ok, but then wont that kill the volume function coz the volume is running through the OEM .... if i do splice into pin 11, and keep both connected will both work? and will the OEM dash buttons also run through pin 11?? Have you tried this?

~Ray

Ahh ok, I was assuming you were replacing the OEM HU functions with the yumcha.

Splicing in to pin 11 (brown) might work. See below:

Removed wrong advice...

Let me try that again (I had a big night last night)...
The BRN wire is tied to ground, so the voltage drop must be read from the GRN/RED wire. (It's been a while since I installed my G4, so I can't remember which color wire I used, but it must have been the GRN/RED wire).

It's really one of those "try at your own risk" things, but theoretically, it should work.

-Steve

PS. The yumcha HU (like my G4) will need to be "trained" to map buttons to functions.

**rayd** · 22-11-2009 11:55 PM

Originally Posted by EuroSteve

Ahh ok, I was assuming you were replacing the OEM HU functions with the yumcha.

Splicing in to pin 11 (brown) might work. See below:

Removed wrong advice...

Let me try that again (I had a big night last night)...
The BRN wire is tied to ground, so the voltage drop must be read from the GRN/RED wire. (It's been a while since I installed my G4, so I can't remember which color wire I used, but it must have been the GRN/RED wire).

It's really one of those "try at your own risk" things, but theoretically, it should work.

-Steve

PS. The yumcha HU (like my G4) will need to be "trained" to map buttons to functions.

wow, ok thanks alot of the help! that could work...

seeing as the unit will need to be "Trained" anyway ... i might as well splice into the brown , the unit will have to lean the new voltage drop signals anyway....

thanks,
~Ray