Remote trigger issues

[GBMidge7]

Hey guys, I have a few questions regarding my attempts at getting my remote trigger to work between my XPA-3 amplifier and my Yamaha Rx-v663 receiver. So just to give a quick rundown, I have my RX-v663 setup with the pre-outs to the XPA-3. The XPA-3 is set to unbalanced for each channel. I have made an attempt at use a male-male 3.5mm jack between the 12V remote trigger out on the Rx-v663 to the 12V remote trigger in on the XPA-3, but with no success. When hooked up like this and after turning the Rx-v663 on, the XPA-3 just sits there with the orange LED indicator on rather than switching to blue, indicating it was powered on by the receiver.

Am I doing something wrong here? Is there some sort of setting on the Rx-v663 that I need to tell it I want the remote trigger to activate? It's not a huge deal at this point, just annoying that I have to manually turn the XPA-3 on each and every time I use the system. Any help is appreciated, and if you guys need more info for clarification just let me know. Thanks in advance!