No back speakers in base model

[Camaroboi13]

Sorry for the horrible paint shop...it was the best I could do in 3 minutes lmao. Anyways, if you pull up the rocker trim on the rear door, you can pull up the trim on the column where the seatbelt goes. Under there, you will see a wire with a clip on it that's attached to nothing. If I remember correctly it was black and yellow on the passenger side, but don't quote me on it. The photo below shows exactly where it should be. Hope this helps!

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[Chevyjay]

Is it possible the wire hook seat belt real

 

[Camaroboi13]

The wire has to be down there somewhere. It'll have a black clip on the end that's not hooked to anything. It's the only place it would be. Not sure if Canadian Chevy Sonics are different???

 

[Chevyjay]

Maybe because i dont see anything, sorry my english is not the best haha

 

[sbeppel]

Maybe because i dont see anything, sorry my english is not the best haha

I was able to access my rear speaker wires by removing the rocker panels
The wire you want are twisted together. Pos and neg
They are O believe green/greenblack on driver side and white/blueblack on passenger.. Look for the 2 wires that are twisted together
. Just by putting in rear speakers it sounds soooo much better. Hope this helps.

 

[Chevyjay]

the rocker panel outside or the plastic inside the car ?

 

[Camaroboi13]

The plastic inside the car, just as I referred to in my makeshift photo

 

[Chevyjay]

maybe the canadian one didnt have those wires

 

[proneto911]

Just got done doing this over the summer. just get the door harness and it's just plug and play. Granted that you have to take the door apart a little bit and rewire it but sound is SO much better. And got a deal at my dealer with stock speakers and the harnesses paid about $150 for everything I think. But everything is there to do it.