TUA-T550HD - Alpine HD Radio Tuner Module Interface
CORRECTION:Now 5 stars instead of 2 stars. When I wrote the response below, my old Kicker class D amp was causing interference via the ground connection. Early class D car amps killed radio reception, it would send oscillating noise through the cars ground, crippling the radio. All the while I thought is was the Alpine TUA-550HD causing the weak reception. The TUA-550HD actually receives stations slightly better than my alpine 9886 receiver. Search and scan is faster than my Alpine 9886 receiver. When HD ra