I just installed a TOY-SC1, SCV-DOC1 and Sportster 5 in my 2007 Camry Hybrid, which has the Toyota nav system, factory security system and smart key system. On post-install testing everything worked fine. But when I got back in the car this morning the head unit failed to find the SC1/Sportster. When the head unit powered up the channel preset list appeared momentarily but with no channel info text. Then the head unit turned itself off. When I turned the head unit back on, pressing the SAT/AM button wouldn't call up the SC1/Sportster--I could only get AM stations. I turned off the car's power, then turned it back on and could then press the SAT/AM button to use the Sirius radio again. There's a loud pop every time the Sirius radio powers up, but everything works again--presets, tuning, audio output, etc. After some troubleshooting I noticed that the failure is related to the smartkey system. As long as the key fob is in or near the car I can turn the car on and off and every time the satellite radio functions normally--though the pop is always there on startup. If I take the key fob away from the car, then come back and turn the car on, I get the failure noted above. Anyone seen this before? Any ideas for resolving the issue? Seems quite strange that the smartkey would have an effect here. And is the pop on power-up normal, or is there a way to fix that, too? Thanks.