Roland Juno DS & External Drum Machine Connection Help!

[argraphics11]

Thanks in advance for helping me with this issue.
-------------
Gear Used
Juno DS
Boss DR550 MKII
-------------
Drum Machine is set to MIDI tempo Sync, I tried Omni & Specific Chanels....No LUCK
Cables are correct Drum Machine in to Juno Out
I press Juno and hear the Drum Sounds from the Drum machine( Communication is set Properly)
-------------
I want to press Play on the Juno DS Sequencer and have it trigger the Start on the Drum machine...
I cant get this to work
-----------
Any ideas what settings might need to be modified within the Junos MIDI section...I pretty much tried them all