Car Alarms: prestige remore starter, remote starter installation, remore

Question
bought a used 03 odyssey a couple years ago. The remote start function quit working. the led lites when pressing the start function as does the built in flash lite. tried changing the battery. I have found the 'black box' under the dash and looked at the electronics but noticed nothing coroded or damaged.No manual came with this. Any thoughts?

Answer
Take this into a local car alarm/remote starter installation
shop for evaluation. Since there is no manual on it,
and no way for me to look at it, I would need
to see the connections to make a judgement on why
it's not working now.

Best to have some eyes on this that can trouble shoot.

ALARMTEK