Everythings looking good!

Last night one of my homegirls gave me a single 15" inch box. I wanna put it to use so i was thinkin about goin  to buy another 15, and then connecting it to my original box in a T shaped design, wit two 15" facing my taillights like i have them now and one of the 15's facing my back seats. Any down falls to a box like this, is this a good idea. I currently have 2-1000 watt amps for each of my existing 15's, does any one think i should buy a third for the planned purchase of the third 15". Tell me what yall think.

I have an appointment thursday to get my car painted, and i'm fina buy some rims for $3000 today. God keeps blessing me.

If you have one speaker facing the oposite direction from another, you can create acoustic cancellation and lower the effective output you can hear.  The sound from one speaker will cancel out the other.  This can be corrected by reversing the phase on one of them.  Set up your system and try it.  If it sounds like you get lower output than you expected, try reversing the phase on the new speaker facing forward.