Hi Tod @CATMAN62, I’m glad this is working for you! As mentioned above, as well as in another thread, it’s most effective to use the metronome solely as an auditory trainer.
The basic argument is that we don’t “see” the beat in music when playing, we hear it, feel it.
My amp has a Bluetooth audio connection which allows me to send my phone-based metronome app (I use Justin’s Time Trainer App, but any app should work) to the amp. When I plug the headphones into the amp, the metronome comes through as well. I don’t think Inge’s Roland Cube has Bluetooth, but it might be possible to get a receiver and plug it into the aux in if there is one.