The back speakers I know are a 6 x 9.
Front: 6x8x2.5" Rear: 6x8x2"
6x9 in the front doors 6.5 in the back doors
6x8 in the front depth 3.75 6x9 in the rear depth 4
2001 Mazda Protege ES uses tire size 195/55 R15
The size of front speakers on a 94 Mazda 121 are 130mm.
Per Crutchfield 6 by 8 in the front and 6 1/2 in the back door. Hope this helps
; In-dash stereo : 6-13/32" depth; Size code DD,E ; Front speakers : Front Door : 6x8" ; Rear speakers : Rear Door : 6-1/2" : Rear Deck : 6x9"
A spark plug for a 2003 Mazda Protege has a 14 mm thread size, and a 19 mm reach. The gap is 1.1 mm.
fronts are 32mm