suggestions for sub quantity

[cweber]

The other night I went to my buddies house to hear his stereo. He has an 03 ex cab chevy with two kicker 10s under his backseat. So I decided thats what I wanted and came home to make my decision. I bought two jl audio 10s and a 500rms alpine amp. So here is my delima. I was originally looking at only 1 sub as im going for more sq than big bass. I just got all excited when his was hitting nice and hard. I still have to order my box, so should I just put one in or suck it up and put in both? My truck is a 96 ex cab and I kinda dont wanna lose the jack location, but can still go either way. Any input?