Ahhhh okay I forgot about version without the Bluetooth. So now back to your question you said that you wan to change your mute to be Bluetooth? Oh NM you got a new stereo that does have Bluetooth.... I get you now LOL. So you want to intercept the signal when the mute is pressed and change it to a signal that your stereo pulls up the Bluetooth screen on the new stereo... I get you. I do not think that these buttons work on resistance as to tell what button was pressed. Most of these work on simple high or low sent down a certain pin if i am not correct. If you check your wiring harness that comes off the steering wheel buttons there should be like at least a 15 pin connector and if you take a volt meter and do some playing around you might be able to figure out what pin on the harness is the mute key. Then you will have to figure out what pin on your new stereo is your Bluetooth and hope that it is looking for the same high or low signal. And that is only if it is using simple high or low 12 volts as a triggering mechanism on both ends it could be way more complex if its a digital signal.