-the blinkers on the trailer are so dim you can't really see them,
-when I turned on the right blinker, all the markers on the bus and trailer briefly would turn off and then back on, off and then back on... (circuit breaker maybe?)
-when the markers are turned off, and I hit the brakes, there is a delay before the brakes light up on the trailer... see this video...
I have wired trailer lights before so I'm pretty sure I wired it correctly, but there only thing I used that I've never used before is a 5 to 4 wire converter, since the bus has separate lights/wires for brakes and blinkers, and the trailer uses the same lights for brakes and blinkers. I don't know if this has anything to do with it, if so I would need to add lights to my trailer to separate the blinkers from the brakes. But this still doesn't explain the markers completely shutting off briefly.
One last thing I would like to add... when the engine is idling there is a gentle flicker in all of my lights if you watch real closely, in fact you can almost hear the engine going along with it, like the sound of the engine is barely changing as the lights change... barely. Thanks for your help guys!