Radio issue, replaced radio now weak FM no AM reception?

Original radio Honda 6 CD Changer, XM ready, Model 39100-S9A-A60, had good reception on both FM & AM bands. This unit accepted standard blue car wire harness (20 pin) + white connector (14 pin), and standard Antenna male input (din). Original car radio connectors shown in photo.

Replacement radio is Android Radio Head and is working other than Radio Reception issue.

The only wire from the new radio head that hasn't been connected is the ANT wire. So that is most likely the solution, but the question is where to connect?

The car does not use Pin 1(empty on blue connector) which in some Honda's is for ANT. So that is not an option. Pin 19 is present in the blue harness and I'm not sure what that is for. I have seen some posts that list that for steering controls, but in this vehicle Pin 3 is used for that and I already have the steering controls working in the new radio.

So perhaps the ANT wire should be connected to Pin 19 on the Blue Harness Plug, or perhaps it needs to be connected to a pin on the second White Connector? On the White Connector not sure of the pin outs on that and have seen conflicting information on that.

Thank you for your assistance.