Universal remotes are designed to make your life much easier. However, if you can't figure out how to get the remote to change your TV's input to the AUX channel, the remote just makes things more complicated. Most universal remotes can change your TV to the AUX channel, but you may not press the most obvious button on the remote to do so.
Multiple electronic devices, like TVs, VCRs, DVD players, receivers and cable boxes, have their own remote controls. As a result, you often find yourself shuffling through several remotes to find the one that controls the device you're using. Universal remotes alleviate this problem. These remotes work with almost any electronic device. With just a push of a button, a universal remote also switches among devices. Universal remotes use short numeric codes to sync up with individual devices.
The Purpose of the Aux Input
An auxiliary channel, referred to as AUX, is an alternative input method for your television. On TVs that only have a single set of yellow, red and white input ports, or a single S-Video input, the AUX channel is what you use to view whatever device is connected to that input port. On televisions that have more than one set of these ports, they are labeled "AUX1, AUX2, AUX3" or another, similar name.
The Aux Button on the Remote
It may seem obvious that to turn your TV to the AUX channel, you press the "AUX" button on your universal remote. Unfortunately, this isn't always the case. The "AUX" button on the universal remote controls a device. Most universal remotes have a set of four buttons at the top that are used to change the remote to control different devices. When you want to control your television, you press the "TV" button. When you want to control your DVD player, you press the "DVD" button. The "AUX" button is just like these button, but can be used for whatever device you choose.
Changing Your TV to Aux
Another button on almost all universal remotes changes your television to the AUX channel. Press the "TV" button so you are controlling your television. Then press the button labeled "Source," Input" or "TV/VCR," that is typically located near the bottom of the remote. On some televisions, this button cycles through the available inputs and you press it continually until the AUX channel appear. On other televisions, this button displays a menu where you can choose the AUX channel.