Radio Conversion feedback

I have an FM converter too but I was considering getting a RediRad RediRad RR-AM/N Antenna Bypass AM modulator Aux Input Classic Car Radio Negative Ground since you can plug your phone, mp3 player, CD player or cassette player into it. My phone has an FM app so you can get FM that way. Unfortunately they've been sold out for awhile. This of course is only an option if your AM radio is good and you don't care about having stereo.