How to Add Bluetooth to an Old Stereo: 6-Step Guide
You can add Bluetooth to an old stereo in about ten minutes without touching its electronics: find a free line-level input (AUX, CD, Tape, or Line), connect a Bluetooth receiver’s output to it, power the receiver, and pair your phone. This guide walks the six steps, the input-safety chart (including the phono warning), ground-loop hum fixes, and how to keep the vintage character intact.
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