Has anyone added rear speakers?

[pblair]

I'm thinking of adding a pair of rear speakers.
I'm assuming the wiring harness is under the back lid area somewhere.
Possibly add a couple of Pyle bullet shaped speakers off the backrest bolts, low and just a little behind the backress cushion. I'll probably make a custom bracket.

Maybe someone has already figured this out.

The connector is under the seat, see what is under the seat in garage topics. Where would I get some of these Pyle speakers?