99_Civic_GSR

Hey H-T I just bought an 03 accord with the V6 and five days later the trans goes out. Bought the car as is so its my fault. I don't want the manual trans in my four door.. My question is, has anyone replaced the A4 trans with something else that would work better? I am thinking a J32 trans might work with this car. Anyone care to point me in the direction that isn't $3200 at the dealer... I know a lot of people have had this problem with the V6 and I want to find a solution for the DIYer. Are the transmissions interchangeable like other honda engines like the B and D and K series engines?