SOLVED! Keeping Bluetooth/voice command buttons with aftermarket radio
I have a 2006 4dr Civic Ex with audio controls, no Bluetooth or voice commands. Im running the Kenwood DDX7701HD dual din touch screen headunit.
I've loved the 09-11 civic's steering wheel controls over my 06, so I searched these forums and for years saw everyone struggle to find out how to wire up the bluetooth and voice commands with the new radio.
So I went to Honda and asked for the wiring diagrams for the steering wheel from my 06 ex, and an 09 ex with navigation controls, so I can study the way they work and if it's possible to tie all of the signal wires together at some point.
And yes, there is
I bought a 09-11 steering wheel with all controls (Nav, Bluetooth, Voice, Audio ect) from a junk yard with no air bag for $75.
The connector at the center of the of the steering wheel is the same on ALL 06-11 civics, so it's plug and play.
My options where , buy a cable rell/clockspring from a 09-11 civic with nav/voice so I could get the wires to pass through the steering wheel and connect /tap/splice into the wires on the other side of the steering wheel, but I wanted to Dave money by not having to buy another part, so I chose to combine the wires at the steering wheel harness before it goes into the clockspring/cable reel.
By having the wiring diagram I discovered that all the buttons use the same ground wire, a brown wire at C10 of the steering wheel harness. You'll notice this wire loops through all of the buttons.
The main control wire for the audio controls is ALWAYS Green/Red at pin C9 at the steering wheel, and then changes to the Pink wire behind the dash at the radio that all steering wheel control (SWC) modules say to tap into, no matter if you have an 06 ex or the top of the line 09-11 civic ex-l. This is the wire you want to tap into because when you hook up your Metra Axxess Aswc-1 steering wheel control module, this is the one wire that will send a signal to the control module depending on what button you've pressed at the steering wheel.
So, what to do....
On the new steering wheel with nav,voice controls, at the green connector at the center of the wheel, cut the orange/White wire at C10 (Bluetooth Buttons signal wire), then cut the Gray or Grey wire at C8 (Voice Control Buttons signal wire), then connect/combine those 2 wires with the Green/Red wire at C9 (Audio control buttons signal wire). And that's it for the steering wheel side of this mod. Of course this has to be done with the airbag off in order to get to the connector, don't forget to disconnect the battery when you do this to avoid accidental deployment of the air bag, or do this mod to the steering wheel when it's off before you install it (if you had to buy it before hand and it wasn't already installed, like me).
Now when you press an audio button like the volume up or down, or voice command, or the bluetooth phone buttons, all their signals now travel along one wire, as opposed to the factory setup which had seperatel control units like the HFL (bluetooth), and voice command (navigation head unit).
I bought the Metra axxess aswc-1 becuase it allowed me to program/map the buttons exactly how I wanted to, and in this case, you'll need to map out and manually program the new buttons that we just added (bluetooth & V.C.) because the SWC module won't automatically recognize the additional buttons.
Follow the steps in the instructions for manually programming the new buttons, and then your done.
The hardest part with this was actually getting off my ass and going to honda and asking for the wiring diagram (5 mins of effort) to see what the pin outs were. People have complained about not keeping those controls, now you can.
Hope I've helped somehow, enjoy.
Sorry for not having pics, I figured they weren't needed since we now know what pin outs to cut/tap into. What controls what ect.