I have two 8" Alpine type R speakers in a prefabricated Circuit City box. Sounds very nice, and is removable with quick disconnects. Scott Tester scott(at)delorean(dot)com --- Soma576@xxxx wrote: >List, > >i am interested in getting rid of those terrible 4x10's and putting something >half-decent back there. what is the biggest possible speaker that will fit >in the hole w/o modifying the trim that goes over it? i don't mind making a >plate or brackets. > >4" round? 5.25"? 5x7? 6x9? 6" round? > >Soma576@xxxx >1982 DeLorean DMC-12 VIN#11596 >Fargo, ND 58102