if you went with the zex system you could disguise the box as an msd by painting it red and tucking it in a corner and covering the lines with vaccum tubing ot something dark---saw it don in an old issue of MM&FF----not a bad idea ----also ther is plenty of room in the spare tire well for a bottle or in the left side under the speaker but just remember dont mount the bottle too deeply cuz you will have to pull it to refill it alot------