2007 pontiac montana

Bulldog Security doesn't list that year but AudioVox does.  Here is a link to their Web site :  http://techservices.audiovox.com/   Sign-up is free.

The van has the PassKey 3 immobilizer system and needs a bypass module. 

Here is a link to the bypass info from Fortin:  https://ifar.ca/en/vehicles/pontiac/montana_sv6/2007/

Here is a link to the bypass info from DEI :  http://www.xpresskit.com/VehicleCompatibility.aspx?p=-1&year=2007&make=Pontiac&model=Montana%20SV6&ps=1&s=0

The ADS DLSL GM1 from iDatalink will do the bypass and many other things like door locks, alarm, sliding doors, etc.  Easy to install, too.  Here is a link to the iDatalink web site :  http://www.idatalink.com/helpdesk/

thank you kreg357 the audiovox like is a great link to have

and i just ordered the ADS DLSL GM1 the options are aresome on that one

Glad to help.  Good luck with the install.

Remember those wiring guides are just guides and all connections should be checked / verified with a Digital Multi Meter where possible.