Odd question about my Receiver....

This is an odd question so bear with me on this one. I have a Yamaha RX-Z7 (non 3-D) receiver that I purchased early last summer. About 3 months later, Yamaha comes out with Aventage series that is 3D. I currently have a Panasonic Bluray player that has 2 hdmi outputs which still allows hd sound to be sent to the amp, not in analog. But I want to get rid of the annoyance of have to switch everything manually when I want to watch a movie. I have Best Buys service plan and my question is what can I do to the amp which would render it unrepairable? Obviously it would have to be something as to not look like I blatantly destroyed it. If it's deemed unrepairable, Best Buy's plan would cover a replacement. cutting open a power cable, connecting the frayed ends to the amp/speaker outputs and plugging it into an electrical outlet? I don't want to burn the house down
: )