2004 Toyota Tundra, Do I Need a Bypass Module

It isn't equipped with a factory alarm so how do i know what bypass i need and can i get a wiring diagram thanks

Wiring details are here: https://www.the12volt.com/installbay/forum_posts.asp?tid=27828 Which brand of remote start or alarm are you installing? That would determine best bypass to use.

Its a soundstream ars.2 thanks for the reply

Your truck probably does not hace a transponder based engine immobilizer. Some were equipped with this system but I have never seen one in the U.S.. Most bypass module manufacturers don't even list a solution for that year truck. All that being said, it would be prudent to verify this yourself. There are several ways. The best would be to remove the steering column covers and look for the antenna ring at the end of the ignition switch and a 5 to 7 pin connector with thin gauge wires on the ignition switch itself. Another test would be the foil wrap test. Take a strip of aluminum foil abot 2 inches wide and wrap the ignition key head with 5 layers of foil, enclosing the entire area. Then use that key to start the truck. If it starts and runs, you don't have a chip in your key or the immobilizer system. Another easy test would be to get a copy of your ignition key made at a local hardware store for $1.99 and try that non-chipped key to run the truck. Soldering is fun!