[lbspd]

Question, are you doing this for the cassette deck?

If not these days online (amazon, eBay, etc.) you can pick up a pretty decent brand name single din head unit with Bluetooth, android/IPhone compatible, SD card, and USB inputs for the same price as the modulator and Bluetooth receiver. It’s not that it won’t work, should but pairing can sometimes be a hassle and the head unit will give you hands free phone functions.