06 toyota tundra, keyless entry

Can some one help me with wiring my 2006 Toyota Tundra with an aftermarket keyless entry. My vehicle did not come with a keyless antry and im having a hard time finding out how to install this and how to begin.

Thanks,

Not sure where to begin. 

Does the Tundra have factory power locks?

What brand and model keyless entry?  Is it an alarm and/or remote start also?

Here is a link to Bulldog Security for a wire guide for your truck:  http://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.asp 

It will give you wire locations and wire colors for the necessary wires.  Remember, this is only a guide.  All wires should be verified with a Digital Multi Meter ( and all connections soldered ).