2006 gmc sierra remote start

I am trying to install a remote start on a 2006 GMC Sierra - base model (NO DOOR LOCKS OR ELECTRIC WINDOWS). The remote start is a Galaxy G40RS. I am having difficulties bypassing the security/theft system.

Your truck has the Passlock2 immobilizer system.  There are many ways to bypass that system during

remote start.  If you have a Digital Multi Meter, a soldering gun, two 30/40 Amp SPDT relays and anassortment of resistors ( or a Radio Shack nearby ), you could go with this old, reliable method :  http://documents.audiovox.com/700054.pdf

As for basic, reliable bypass only modules, here are just a few that are available for your truck :

DEI 556LW  This bypass learns the resistor value and supplies it to the truck during remote start.

                       http://www.xpresskit.com/product.aspx?productid=41   555L & 555LW are OK, too.

iDatalink ADS-TBSL PL   This is a Data type bypass.  Very reliable, no wires to cut and very easy to install.

                                              http://store.idatalink.com/index.php?l=product_detail&p=8

Fortin Passlock-SL2-V2  Fortin quality, reliable & no wires to cut.

                                             https://ifar.ca/en/products/alpha/passlock-sl2-v2/

Soldering is fun!