Any IR ones will work. If you want them to work with the other inputs/sources such as radio/XM/RCA then get a 2 channel model. The single channel ones only work for movie audio when a movie is playing.
I grabbed 2 sets of cheap single channel ones for my 2011 from Walmart.com for like $15. My 2012 came with 4 sets of the factory 2 channel ones and the 1 channel ones I kept from the 2011 work but only with movie audio.
2001 Yukon SLT
2012 Yukon XL Denali
2011 Yukon Denali RIP 5/20/18
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