Visteon HD Radio
One used FM module. Had this mounted in the car with the PC and worked well. This package comes with the wired remote, antenna module, RCA cable and the MJS adapter. This allows you to hook the HD Radio module to your PC via a serial port and you can then control the tuning with the PC and front end software. (your software needs to support the HD module here. I used Centrafuse and it worked just fine that way).
Price: $50 plus $8 shipping.