My current setup drives the factory speakers through a quad amp. Now, i recall reading somewhere on this BBS that a sub complementes factory speakers and makes up for their biggest weakness. Bass.
I am thinking about the Pioneer TS-WX20LPA.
Is it okay if i simply Y-off the rear outputs and use them for the amp and the rear spks?
Or i could use the Y cable for the front outputs and drive all 4 factory speakers with them and use the rear outputs excusively for the amp.

Thoughts?