For Kato SD70MAc locomotives, a UFIT-7250 will fit in the rear location while a UFIT-2325 may be added behind the cab. The speaker uses double-sided mounting-tape or a dab of adhesive to mount on the frame. The front and rear headlight light-pipes will need to be trimmed with SMD LEDs glued to them (much preferred over the stock lighting arrangement anyway) and the stock light-pipe mounting posts trimmed off.
 
The speakers come fully assembled and tested.