Help!! Need Help from longtime Days fans!!

[CarrieAustin06]

When Carrie and Austin were on last in 2006 - Austin kept showing Carrie their initials which were carved on the door on the roof. This is an Aurrie Holy Grail and I was hoping some of you long time fans, especially Lumi people might remember if Austin making the carving on the door ever happened on camera, and if it did what year, what other storylines were active at the time. I'm sure if it happened on camera, Patrick Muldoon was the Austin who probably made the carving. Also the first time Carrie and Austin spent time together on the roof. I know these both happened after 1992.