I'm looking for a fairly cheap way to play music off of my phone are there any recommendations?

 

I use this, it works pretty good

Anker Roav SmartCharge F2

 

I agre with Dizzyedge; I bought this one which is working great:

 

That said, most often it's suggested getting one that taps into your antenna directly like this one.

iSimple IS31 Antenna Bypass FM Modulator for Factory or Aftermarket Car Radios


But I've had no issues with the ROAV and it doesn't require you opening up your center console like this antenna bypass one does.