[TBistue01?]

Just took delivery of a '19 Trax LT. Disappointed in the sound system.
Looks like the Bose upgrade has a amp'ed sub woofer mounted on the spare tire.
I would like to add it. Can anyone tell me where to connect into existing harness?

 

[Traxy]

If your Trax didn't come with the Bose system it probably doesn't even have the wiring for the sub amp either. Amp and sub are separate.

 

[TBistue01?]

Traxy,
Can you tell me what size the door speakers are? I would like to start by upgrading speakers.

 

[TBistue01?]

6.5 in speakers will fit. OEM speaker mount is part of the speaker, so you need to fabricate a mount.
I separated the actual speaker from the mount and attached replacement speakers to the mount with screws.
Save the wire connector by unsoldering wire, then connect new speaker.
This way, you use factory wire connector and mounting system.

 

[Traxy]

Did you take pictures?