I have the astrostart rs-623 installed on my 2006 v6, automatic mustang. This happens most often in the morning after the car has been sitting, but it has happened in the afternoon too. I had this insatalled so I wouldn't need to keep running out and starting it with my spare key, but if it keeps failing it seems pretty useless. I plug my 2006 mustang in when the temperature reaches -10 celcius. This morning I walked outside and physically watched it as I used the remote start (it was -30 with the windchill). It started up just fine and sounded good. I went inside and came out not even a minute later and it had died. Its been doing this since I got it installed... what is wrong with it???

Cars & Trucks - Chrysler - Town and Country