If those are the ones that have a black box for each about the size of playing cards, that shelf is probably on top of the air intake ducts on each side. If you removed the shelter and looked at what they laid those contol boxes on, you would probably choose somewhere else to mount them. Mounting there sometimes brakes the air duct mounting screw bosses. I now stock the plasic stay the PGM-Fi unit mounts to for my customers when that happens.I have the Goldwinghids that I got at Wing Ding. Their ballasts fit on a shelf like area forward of the side pockets accessed by going up in the fork tunnel on either side. Easy install,good luck.