[pdxrealtor]

I have smart start, OEM deck/NAV, with a GM lock pick installed for video and reverse cam.

I have an Optima red top. My battery will die if it sits for more than 3 weeks, otherwise it's good to go.

You can get a kill switch that senses voltage and when voltage drops below XX the kill switch will disconnect the battery. They're pretty cheap and easy to install.

RE: the Viper Smart Start. Love it. Not all the features work, like turn car on at certain cabin temp, or turn car on at certain voltage, etc... I was told this is because these features are incompatible with GM. If someone knowns different I'd like to know.

I always had communication problems using the smart phone app on Android, but never once been left with a communication error using the iPhone.

It's convenient, and I use mine daily.

Hope this helps