i'm looking to replace the ac compressor on my 02 5.3 Flex-fuel and was skimming my options on Rock Auto. Almost all of them said "Exc. Rear Auxillary AC Control (C69)". And of course mine would have that option. I did see that the Denso model#4710316 didn't make any specific comment on the part. So I'm needing to know which one i should get. I prefer the GM part so if any of y'all know off your head what that is, please advise! Thank you in advance.