So before Transport Canada mandated the use of K5CA-LS horns on all passenger trains, GO Transit's fleet of F59PH's had this K5LA equipped. https://www.youtube.com/watch?v=WcyHO63jbVc I know that similar horns are found on other F59 units, but what type of K5LA is it? And on the same lines what type of K5LA is this? https://www.youtube.com/watch?v=ab8TrfIn0GQ This was equipped on the MP40PH-3Cs before the K5CA-LS. Does anyone know what type of K5LA's these are?