If you don't already own a speaker system with a built-in dock adapter, you can buy one from Apple; Locate the built-in dock adapter on your speakers. It is usually in the center of the system. Locate the dock connector on the bottom of your iPod touch. It looks like a slim line; the size should match the dock adapter. Line the iPod touch's dock connector up with the dock adapter and push it down. It should slide down easily and click into place. If it is not going down easily, you are probably doing something wrong; take the iPod touch off the dock adapter and try again. Turn the system on and play music from your iPod as usual.

Determine the size of speakers you will need. The larger the room, the more sound needs to carry. Find out what type of speakers will fit your stereo system in terms of wattage. Check the factory specifications to make sure the speakers and amplifier are compatible. Pick your desired model of speakers. You can choose from bookshelf, floor-standing and in-wall speakers. Decide what type of speaker you want, such as two-, three- or four-way speakers. This unit represents the number of frequency bands the speakers will handle. The higher the number, the greater the clarity. Strive for balance in the speakers you pick. All of the speakers should work properly for maximum performance. Inspect the home audio speakers before buying them. Listen to the sound, gently rap on the sides to check for hollowness (a sign of poor quality) and check the weight of the speakers. Purchase the necessary accessories, such as the right speaker cable.

Place the speaker cabinet on its back if possible and remove the speaker grille. Some grilles pop into place but most are secured with screws that will be visible from the side or front on the cabinet. Unscrew the first screw from the bad speaker, and then remove the screw opposite it. Remove all screws in opposite pairs. Lift out the speaker carefully because it is still connected to the other speaker by wires. Some speakers will be attached by two wires, and others by four, but there should never be only one wire. If this is the case the speaker may not be blown, only disconnected. Pull the wires from the speaker tabs by the plastic connector. Use pliers if necessary but do not pull on the wire itself. If tabs are not color-coded (the standard code is red equals positive and black equals negative), label them with a marker. Tape the wires down so they do not fall inside the cabinet. Confirm that the speaker that has been removed is bad, if desired, by measuring the resistance between the positive and negative connection tabs. If the meter reads less than an ohm or more than twice the impedance rating, it is bad; otherwise, it might not be bad. Gently press the center of the speaker cone. If it makes a scratchy sound or does not spring back into place, it is bad. Push the wire connectors onto the proper tabs, using pliers if needed. Gently place the speaker into the mounting hole and replace the screws in opposing pairs. Do not tighten. Tighten screws only after all have been placed. Replace the grille and return speaker cabinet to upright position.