I immediately switched to a third-party universal remote, so I didn't try to get it working with the 990's remote. HiFi Remote lists 0539 as a Yamaha DVD code that might work for the UEI remote if 0490 and 0545 didn't work for you. Are you trying to program it to the AUX button? If not, try that one since it's the one that by default is associated with the DVD code library.