OEM Nissan Bose amplifier module, part number 28060-JB20A, is the Speaker Amplifier Assembly for the Bose-enabled audio system in select Nissan vehicles. Verified listings identify this exact part as the replacement amplifier for 2008–2009 Nissan Altima Bose systems, and it is sold as a genuine Nissan component under the 28060-JB20A designation. As the power amplifier in the factory Bose setup, this unit provides the amplified signal that drives the vehicle’s Bose speakers as part of the original audio installation.
