The Metra 70-9220 is a factory radio wiring harness designed for select 1990–2005 BMW vehicles. It allows installers to connect an aftermarket radio to the factory wiring without cutting OEM wires, making radio replacement faster and cleaner. Main Features Plug-and-play radio replacement harness Connects aftermarket radio to factory BMW wiring No cutting of OEM wiring required Standard EIA color-coded wires Speeds up aftermarket radio installation Maintains factory wiring integrity Compatible with most aftermarket radios including: Kenwood Sony Alpine Pioneer JVC Common Vehicle Compatibility Fits select BMW models including: BMW 3 Series BMW 5 Series BMW 7 Series BMW Z3 BMW M3 Typically supports many 1990–2005 BMW applications. Vehicle trim and factory amplifier systems should always be verified before installation.