Originally Posted by tibasnatch
I also have an 03 coupe....with a pioneer 3300BT receiver....id appreciate any help....
I dont really understand what part u took of the bose and soldered.
Ok here’s the deal. Look at the back of your Bose unit. You will see 4 female plugs, 2 black and 2 white. Look at the white ones. The one you will use is the white 16 pin plug which is the nearest to the antenna port. Basically just start removing screws until the metal part on top (highlighted in blue) comes off. It is a bit difficult but it can be done. After you get the cover off there will be some more small metal pieces inside holding the 2 white plugs in place. Pry them off and you will be left with the 2 white plugs which are soldered onto the circuit board. Take some very small cutters and snip each pin flush with the circuit board. Once you cut all the pins you should be left with the plug in your hand. Now hold the plug in your hand and get a small pair of needle nose pliers. Go in from the front of the plug and remove all the pins you don’t need by grabbing each little pin with the pliers and pulling. Remember to do this from the front of the plug not the back. Once you complete this you should have a little white plug with 3 pins still in it. Use another set of very small pair of needle nose pliers to loop the back of each pin. Solder the wires from the ASWC to the corresponding pins. See my diagram for how to do this. After the wires are soldered put some heat shrink over each pin/wire. Now you should have a plug and play harness for your AWSC.
You will only use 4 wires on the AWSC harness: Black, Red, Gray/Red and White/Green.
Pin 11 on the plug you made will go to ground.
1) Connect the Black wire of the ASWC to ground. You may use the same grounding point as the aftermarket radio.
2) Connect the Red wire of the ASWC to a 12 volt accessory wire, one that turns on and off with the ignition key.
3) Connect the Gray/Red wire of the ASWC to pin 4 of your plug.
4) Connect the White/Green wire of the ASWC to pin 13 of your plug.
5) Solder a piece of wire on pin 11 of your plug Connect that wire to a good ground.
After everything is all connected plug in the male 3.5mm connector of the ASWC into the back of the aftermarket radio, designated for an external SWC control interface. Please refer to the aftermarket radios manual if you are in doubt where the 3.5mm connector of the ASWC goes. Once all connections have been made, plug in the aftermarket radio if not done already.
* If this is the first time the ASWC is being installed:
1) Turn the ignition on; the led will start flashing rapidly which means the ASWC is looking for the vehicle and the radio. Go to step 3.
* If the ASWC was installed before:
1) Turn the ignition on, the led will flash slowly
2) Hold down the reset button for more then 2 seconds but less then 10 seconds, the led
will start flashing rapidly
3) Push and hold the Volume Up button.
4) After a couple of seconds the led should stop flashing and not light up for 2 seconds.
At this point do not push any buttons.
5) After the 2 seconds there will be a series of 7 flashes, some short and some long.
6) The led will pause for another 2 seconds then flash up to 9 times. 7) This is the end of the auto detection stage. If the ASWC detected the vehicle and the
radio successfully the led will light up solid red.
8) Make sure the steering wheel control buttons function correctly in the vehicle and
enjoy your radio.
Most of this info is directly from the Axess website. See here
If you have any more trouble let me know. I tried to be as clear as possible. If it wasn’t such a pain I’d remove my stereo and take some pics of my wiring. Like I said if you are in the SoCal area I’d be glad to help out. Let me know if you need more info.