'06 toy sienna ign wire/s.

why are there 2 ignition wires? pls. tell me. cowboy

It's for load balancing in the fuse panel. It controls two different circuits that are powered on when the key hits the ON position.

You'd probably have to ask Toyota. All we aftermarket installers can do is install the remote starter to emulate the way the car was built at the factory. Some cars can have even more ignition and/or accessory wires. That being said, I can take a guess. You ever go into a business or warehouse where instead of having one light switch like you probably have in your kitchen, they'll have a half-dozen switches all lined up, and then you move all of them up or down to control the lights? That's probably because the typical light switch is rated for 15 or 20 amps, and the place probably has 100 amps' worth of overhead lights, so they put them on separate switches. As an added benefit, if one switch fails, the others continue working, so you still have some lighting until the other switch gets replaced or repaired. So anyway, Toyota is probably doing something similar, even though we can only guess. The Sienna has two constant-power feeds to the ignition switch, each fuse separately. The fuses are labeled AM1 and AM2. Usually a 30-amp and a 7.5-amp. So basically, when you turn the ignition key, you're actually moving several little switches contained in one small housing in the steering column.