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Hard wiring Bluetooth module to Aux jack

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I tried searching, but could find what I was looking for. I'm trying to hardwire my aftermarket BT receiver to the Aux jack on the stock Sierra Bose radio. I got my wires soldered to the back of the circuit board / Aux jack, but the radio won't let me into Aux mode without someone being plugged into the front jack.\

 

I tried to pin point the circuit that detected the plug, thought I had found it, and I put a break in the circuit. This worked until I actually powered up the BT unit. When that happens, the radio jumps back to FM and I can't get back to Aux. Again, if I plug into the front jack, I'm fine. If the BT doesn't have power, I can get in and out of Aux mode without anything being plugged into the front.

 

I've given up for tonight, but I'm wondering if anyone else has attempted to solve this and been successful?

 

Pics would be awesome if so...

pendragon Enthusiast

pendragon

Posted
Posted

I tried searching, but could find what I was looking for. I'm trying to hardwire my aftermarket BT receiver to the Aux jack on the stock Sierra Bose radio. I got my wires soldered to the back of the circuit board / Aux jack, but the radio won't let me into Aux mode without someone being plugged into the front jack.\

 

I tried to pin point the circuit that detected the plug, thought I had found it, and I put a break in the circuit. This worked until I actually powered up the BT unit. When that happens, the radio jumps back to FM and I can't get back to Aux. Again, if I plug into the front jack, I'm fine. If the BT doesn't have power, I can get in and out of Aux mode without anything being plugged into the front.

 

I've given up for tonight, but I'm wondering if anyone else has attempted to solve this and been successful?

 

Pics would be awesome if so...

 

Yes it's not an issue of doing anything on the circuit board, the unit will need to be re programmed through a dealership, at this point your unit thinks it's just the way it was when it left the factory, you need to be able to tell it that it now has AUX inputs, I had to have it done when I added an audio input so that I could hard wire a Sirius radio into the unit (XM doesn't work where I am) took them about an hour to figure out which codes fitted my config but it works like a charm now

mike94silverado Senior Enthusiast

mike94silverado

Posted
Posted

Yes it's not an issue of doing anything on the circuit board, the unit will need to be re programmed through a dealership, at this point your unit thinks it's just the way it was when it left the factory, you need to be able to tell it that it now has AUX inputs, I had to have it done when I added an audio input so that I could hard wire a Sirius radio into the unit (XM doesn't work where I am) took them about an hour to figure out which codes fitted my config but it works like a charm now

X2 I just did the same thing with a Satellite Radio for a friend... has to be reprogrammed.

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