I work at a place called Professional Sound Services in NYC. We sell, rent, and service all audio equipment for the film industry. We work with all kinds of mixers, wireless, and recorders. When we sell the R-09, we always recommend to the customer a 6" cable that is stereo mini(m) to stereo mini(f). Ideally, you would leave the stereo mini(m) in the input jack at all times so it doesn't become intermintent. I recently bought a R-09HR and I will be getting this cable as well.
Thanks,
JUSTIN