2015 GMC SLT Bose audio inputs

RGatzke · September 26, 2015

I have a 2015 GMC SLT AT CC with Bose. I'm wanting to add a JL Audio 900/5 HD with a sub and components. My question is does the Bose amp use low voltage inputs or data signal for the audio in?

From looking at all the wiring on the amp and the radio outputs I'm thinking it's using data for the inputs.

RGatzke · September 29, 2015

Anyone?

crewl1 · September 29, 2015

In researching other posts about adding aftermarket subs and amp, it appears the signal is a digital audio signal to the bose amp.

I don't know this from experience, just what I have read.

Most folks seem to use a speaker out signal via a line converter for adding amps.

nkd90 · September 30, 2015

Im not sure.. but to help you out I added a sub and amp to my truck.. if your looking at the amp that came with the bose system the far right connector pin has two wires a little bit thicker than the others. These wires should be blue/grey and grey/blue and i connected my line out converter to those and ran rcas from the line out converter to the amp.

RGatzke · September 30, 2015

I was hoping the Bose amp had line level inputs from the radio. I really didn't want to use a line out converter for the system due to the chimes and Onstar coming through it as well.

I was hoping to tie into the line level inputs(if it had them) and running my system. I'd keep the factory dash speakers hooked up to the Bose amp for chimes and Onstar and run my system off of my amp. But I'm guessing it's all run by a data signal and not actual line level inputs.

I did notice on the far left black plug next to the brown plug there are six wires that are paired up. I was hoping that they might be inputs.

nkd90 · September 30, 2015

I was hoping the Bose amp had line level inputs from the radio. I really didn't want to use a line out converter for the system due to the chimes and Onstar coming through it as well.

I was hoping to tie into the line level inputs(if it had them) and running my system. I'd keep the factory dash speakers hooked up to the Bose amp for chimes and Onstar and run my system off of my amp. But I'm guessing it's all run by a data signal and not actual line level inputs.

I did notice on the far left black plug next to the brown plug there are six wires that are paired up. I was hoping that they might be inputs.

I have a line out converter going from the wires posted above to a amplifer for my two 10'' woofers and the chimes and everything is still normal sound! they are not amplified. I couldnt tell you what wires are what. On my SLE truck i used the green/green black /yellow/yellow black / white/blue white to add my aftermarket mid range speakers and subwoofer. Did that on my SLT truck and i wasnt getting any signal so the only ones I found to work was the blue and grey wires. I even looked at the back of the headunit and everything was different from my SLE truck for audio wiring. And i had no luck finding a wire diagram on this forum/google so sorry I couldnt of been more help!