Has anyone out there installed the Mazda Mobile Start system themselves? I'm having a heck of a time getting it to register and was hoping to get some insight from someone who may have already installed one. The physical installation went fine but when I got to the MMS Registration Procedure, I start having problems at step 3. Steps one and two appear to be successful based on the diagnostic LED but when I get to step three and press the start button twice with the advanced key the security indicator flashes. It flashes for probably about 30 seconds then finally stops. I've tried waiting it out till it finishes but that doesn't work (gives three flashes on the diagnostic led without doing anything else) and continuing while it is still flashing (this gives 1 flash when i complete the sequence). I've double and triple checked the installation and it looks per instruction. Anybody got any ideas or troubleshooting tips? Thanks in advance.