I have a 2011 HHR LT. it did not come with the factory remotes. It came with a single remote as shown in the picture. The aftermarket remote works fine and includes remote start I would like to add 2 or 3 OEM remotes that I already have Questions: 1. Did the HHR remote fobs ever have remote start? 2. Has anyone ever installed or had installed the aftermarket system shown above? 3. Can the two systems work simultaneously? 4. Can I ditch the aftermarket fob and go strictly with the OEM?