At the moment, there is no conversion kit available for the '07 Tahoe. This is primarily due to the new head unit design in the 07's. But count on something being released in the very near future. As far as I know the Directed Electronics SIR-GM1 is the only conversion kit available at the moment for GM vehicles, and it is not compatible with the new style head units Fortunately, you can use an external tuner like the Sportster and the AUX input on the radio, and not have to rely on an FM modulator option.