Adding extra speakers?

[TBurleson]

so i got some extra speakers layin around my house from my old truck and was wanting to add them to my tc i was thinking about adding one on each side of the center area down were ur feet are
i know how to wire and everything and i know ill need an amp is there any problems anyone can think of i might run into (if u have another suggestion of were to put them im all ears i got two 6.5 and two 6x9's)

[scionfuel]

You won't have stereo sound. One speaker will be facing you and the other will face the passenger. It will also sound out of phase because the sound from the passenger side won't get to you until it bounces off of the door. Not only that, but the speaker will be facing the door speaker and cancel out all of the bass coming out of it. Probably not the best idea. Try just putting your 4 ch. amp on the door and rear speakers by themselves. You will be suprised on how good it might sound.

[TBurleson]

i actually thought of that and have decided to just add them next to where the stock speakers are