RetroRadio for 1977-83 BMW 3 Series — Bluetooth 5.0, HD, SiriusXM-Ready, AM/FM LCB-M4-308-509-39-78BM2

RetroRadio LCB-M4-308-509-39-78BM2 fits 1977-83 BMW 3 Series and requires assembly with a modular mounting setup. The head unit offers AM/FM reception with 30 presets and HD capability, plus built-in Bluetooth (Version 5.0) for wireless streaming. It includes 2 USB ports, a dedicated subwoofer output, and is SiriusXM-Ready® (SXV300V1 tuner sold separately). Power is supplied by a built-in 300-watt (peak power) Mosfet amplifier.