01 Ranger Edge False Alarms

I've been reading some posts concerning the Fords.  I thought I hooked up the wires correctly with the diodes.  I checked it to make sure.  Everything seemed to work flawlessly.  But now I keep getting false alarms every few hours.  I have the Hornet 564T and hooked it up to my 01 Ford Ranger.  The two way pager tells me the doors are being opened.  But every time I check, everything is secure.  Any suggestions?

Also, if I wanted to hook up my horn to go off with the alarm, what wire do I use from the alarm?

Thank you all for the great info!

No, it's very strange.  Sometimes it's an hour, sometimes two, sometimes more.  I thought maybe I had a bad switch in the door, but whenever I got out to check the truck after the alarm goes off, the dome light is off.  If the door switch regestered open, I think the light would stay on for a few seconds.  It's got me scratching my head...

So for the horn to work with the alarm, I need to purchase a relay?  There isn't a wire from the alarm itself I could use?

Where did you pick up your door trigger? Go to the under dash light. No diodes needed, and no more false alarms. If you are using the negative trigger....you need to diode isolate.

I have a ranger , been there for that problem.

In each kick panel , get the door latch wire, hook them up together and wire up the relay to send a trigger to the alarm.

On those truck , the truck goes on sleep mode after 30 min to 1 hour(everything goes to ground)

do that and your problem is fixed