Before the UI-7, my ID-4100A controller was velcroed to my dash. It worked, but it looked messy, and the factory speaker audio was muffled by the dashboard carpet.
Look toward the rear-right section of the MAIN Unit board (with the radio's front panel facing you).
Connect the DC power cable and an appropriate antenna or dummy load. Turn on the transceiver. icom ui7 am fm unit install
Installing the Icom UI-7 AM/FM Unit: A Comprehensive Guide for the IC-725
Disconnect the radio from the main power source, power supply cables, and all coaxial antenna lines. Before the UI-7, my ID-4100A controller was velcroed
Align the multi-pin connectors on the bottom of the UI-7 board with the matching pin headers on the transceiver's MAIN Unit.
Once operation is confirmed, it is time to close up the rig. Disconnect the power cable once more. Connect the DC power cable and an appropriate
If you unplugged the internal speaker, plug it back into the correct header.