2003 ford mustang mach 1 starter problems

I installed a autostart as-1474 into a standard 2003 ford mustang mach 1.  For some odd reason after you do the shut down sequence it starts fine for about 15 min.  Then after 30 min or so the starter does start, or even show that it recieved the signal from the remote (parking lights).  But its not a recieving issue because the door locks work fine from the remote, just does not try to start after about 30 min.   Its almost like there is a gremlin that unpugs the starter after 30 min.

Has anyone run into this??

hi if try relay isolating the doorlock the gem module pulses the door every 30 min and will take the starter out of reservation had this problem on a 03 mustang 5 speed try this out pin 85 to door trigger pin 86 to 12v power pin 30 to door trigger and pin 87 to rs door trigger the gem module isn't strong enough to trip relay but when the door opens it will trip the relay.