Then I got this kit, marketed as the Professional kit. If you can get to your car radio, you can do it yourself. I had to google to find out how to get to my radio. It was simple from there.

The difference with this kit and the DIY one is that this kit uses your car’s existing antenna for a signal and uses your car radio’s antenna input to feed that signal in. Of course if your lucky enough to have an aux-in jack on your car radio, better yet. Conversely, the DIY kit uses a separate antenna for reception and another antenna (if you don’t have an aux-in jack) to broadcast the signal wirelessly to your radio. Both of those antennas must be adhered to your windshield or rear window. A windsheild antenna does not get as good reception as the external antenna installed on my car.

The biggest advantage with this setup, in addition to a stronger signal by using your car’s antenna, is that by intercepting the antenna signal to your car radio, your car radio receives only the HD unit’s signal thereby eliminating interference which in turn means never having to adjust the HD unit’s broadcast frequency. And when you turn off the HD unit, your car radio will receive the same reception it always did.

As for the HD tuner, I wish it had an aux-in jack for an MP3 player like some other brands have.