2006 chevy equinox

Yes.  It means you need to find a source for an ADS DL or Directed DB-ALL bypass module.  ( Or always start the vehicle before using the aftermarket FOB's to unlock the doors, or only use the Factory FOB's. )  Can't remember if the Factory Alarm goes off with just a remote start.  According to Ready Remote wiring info, the Factory Alarm is Disarmed with Ignition and Passlock2.  Here is a link to the Ready Remote wiring info : 

  http://www.readyremote.com/main.asp?action=select&yr=6176&product=Security&make=Chevrolet&model=Equinox  

Either way, if the Factory Alarm is ON and you unlock & open the doors with the aftermarket remote start system FOB's, the alarm will go off.  Unless you do the install with a bypass module like the ADS DL flashed with DL GM4 firmware or the Directed DB-ALL flashed with 401.GM5 firmware.

While the Equinox Smokeman1 did recently did not have a Factory Alarm, the DB-ALL w/401.GM5 firmware worked well.

Link for rear defrost info if you are going to connect it:

https://www.the12volt.com/installbay/forum_posts.asp?tid=109268&tpn=1&PN=1

There are two lt blue wires back there. It will be the thinner one in the bundle of wire. Mine on the 05 Equinox tested out as Negative pulse.(-)