Yes, but that pulls the soundstage to the rear of the car. When was the last time you went to a concert and put your back to the stage? You want the best possible speakers in the dash & door, the rear speakers are for fill only... shoot, you can leave the stock ones in there if you want. In a properly tuned system, you should only notice the rear speakers if they are turned off. All the sound should seem to come from the front. Much easier said than done, of course...
