I recently received a Viper 4105 Remote Car Starter for a gift. I have a 2013 Elantra that has keyless entry, push button start and a proximity key. I'm curious if the car starter will also allow me to open my door without taking the key out of my pocket like I can now with my current proximity key. The gift came with professional installation, yet I don't want to delete that feature as I often use it. Any comments would be appreciated!