The 60 series T-Harness is a harness providing a constant 12 volt, a switched 12 volts, and ground for all additional accessories such as CD changer, keyless entry, alarms, and cell phone hand free kits. The best part is that there is no cutting of the factory harness. All you do is just plug this inline between your radio and factory radio harness and that's it. All the wires that you need are at your disposal.
These harnesses keep all the factory wiring and radio functions in tact. This also will preserve any factory electrical warranties.