About the Metra 40HD22 Antenna Adapter
This antenna adapter lets you connect your Acura factory radio to the Motorola connector on a new antenna. The adapter has a female Motorola plug on one end and a Honda antenna plug on the other.
You'll also need this Acura/Honda adapter if you are connecting an FM modulator to your factory radio. Warranty: 60 days.
More details on the Metra 40HD22 Antenna Adapter
Compatibility: The Metra AntennaWorks Honda/Acura vehicle antenna adapter cable (40-HD22) converts the Honda or Acura factory radio antenna plug to a standard motorola plug for installation of an aftermarket antenna in a 2009-up Honda and Acura vehicle.
Installation Note: A blue wire is attached to the antenna adapter. When installing the adapter, the blue wire should be connected to the antenna turn-on lead of your head unit.