I bought some Rockford Fosgate speakers when Amazon had a sale a few weeks ago and my setup will be 5 1/4" in the front doors, 6x9"s in the back deck (all to replace factory speakers) and a single 12" sub to replace my old Phoenix Gold 10s. I was wondering if I should somehow box the 6x9"s. I'm no audiophile and actually rarely listen to music in the car but I would like it to sound as good as it reasonably can. I don't have an amp driving the 6x9"s. I may at some point but the car stereo is used so infrequently I don't see the value in it right now. I'd like to keep them mounted below the back deck, not boxed and sitting on top of it.