If your trying to get the remote to learn the power button for the other, you may have to program to a button other than a power button. A lot of learning remotes don't learn the power on/off on the same power button itself. I'm assuming this is what your trying to do since they're both remote receivers. If it doesn't work, you may have to use both remotes. The subs must be easy to drive if your using a receiver to do that. Page 26(AVR3600) may help for learning the other remote codes. Its surprising they both don't turn on with the remote. [http://www.harmankardon.com/resources/Brands/harmankardon/Products/ProductRelatedDocuments/en-US/OwnersManual/AVR_3600_Owners_Manual_Eng.pdf][http://www.harmankardon.com/resources/Brands/harmankardon/Products/ProductRelatedDocuments/en-US/OwnersManual/HK_3490_OWNERS_MANUAL.pdf]
