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I'm looking at improving the sound of the subwoofer by replacing it with a higher quality unit in the same box with an external AMP. I found wiring diagrams for a 2011, but does anyone have diagrams for a 2017?

Thanks
 

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See WopOnTour response on this thread

http://gm-volt.com/forum/showthread.php?247345-Volt-Radio-Audio-System-Info/page2&highlight=bus

Basically on a Gen2 volt with the bose option, the signal from the infotainement sytem (radio) and the bose amp is a MOST BUS based system (digital). The schematics on the link provided are for the speakers wires from the bose amp to the speakers.

On the GEN1 volt, it was possible to completely bypass the bose amp because the signal was analog between the infotainement system and bose amp (typical analog speakers ouputs, front rear left right).

Hope that helps...
 

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For those who wants to play around with the Volt Gen2 Bose system here a some useful pics:

First see the Wop On Tour diagram to have the full speakers wiring color code on this thread:

http://gm-volt.com/forum/showthread....&highlight=bus

And here is some more pics:



Overview. On top : the BOSE AMP. Bottom : XM radio module (black)



Other pics:







FYI : I used the rear cigarette lighter +12V as a Remote signal to power up my Alpine Amp since I probed all the wires on the Bose Amp and didn't find any ACC RAP power signal. I suspect the BOSE amp power itself via CAN bus messages. So if you use my method as a remote power signal, your amp will not power up when the door opens and you will loose the "greeting chime" since the AMP will still be off (no power to the 12V outlets until you power up the car of put it in ACC or DIAG mode).
 
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