As much as I have looked, I can't find a page showing the wire routing from the radio to the rear seat speaker on my '67 Toronado. There are an awful lot of potential pinch points behind the seat, and I'm wondering if anyone has the info (or page) I'm looking for. I assume any larger car with the center seat speaker would have similar wire routing to mine. Any help is appreciated!

 

Here is the original routing in my 68 (factory AM/FM stereo with underdash 8 track). The wire runs from the radio to the right side of the dash, down the kick panel area, over toward the middle of the passenger seat area, back the floor, and runs under a conduit in the back seat area. There are multiple plastic clips screwed into the floor every foot or so to secure it to the floor.

 

That couldn't be more perfect - THANK YOU!!! I have the same metal conduit under the back seat and similar structure behind the rear seat. Answers every question I had!!!

 

I've always wondered why the front feet area is uncovered and the rear gets a protector. Maybe it is because you climb in and out back there and go to the middle.

 

The big cars had a metal wire cover covering the passenger side run to the rear of the car. Interestingly, the left side used a ribbon cable for the rear lights, gas gauge and whatnot.

But yeah, your speaker wire runs on the passenger side behind the kick panel, routed through the hole to the rug, then back under the passenger bucket or bench, under the rear seat bottom and up to the speaker, or reverberator if you have one.

The rear seat speaker has a typical GM 2 wire connection. Negative lead goes to ground on a convenient piece of metal on the frame/chassis, positive lead is the one you want route from front to rear.

Cheers
Chris