ive seen different specs on the shaker systems. does anyone know what are the sizes of all the speakers for the shk. 500? really the bottoms in the doors, iveheard 8's, 6's and 5 and a quarters? who knows?

 

The top speakers in the doors and in the package tray are 5x7's, but 6x8's will fit in these locations too. I've heard the subs in the door are 8's but I think they are pretty shallow. Replacement subs might be hard to find.