Jim Macklin wrote:
To add or remove from the aircraft, the Airframe license is
required or the avionics technician must be working under
the supervision of an A rated mechanic or in an FAA Repair
Station.

Most avionics techs do not hold an FAA certificate as a
mechanic, however they are required to hold an FCC
certificate in order to make any repairs to transmitters,
such as comm radios, transponders and radar.

After getting the required FCC certificate and endorsements
for the transponder and/or radar they usually will attend
factory schools for specific hardware/manufacturers.

Ok, that makes sense.

Given that I hold a valid FCC General Radiotelephone
license, I presume I can do my own panel work providing..

1. Any structural or weight and balance issue is
signed off by an A or A&P rated mechanic.

2. Any required calibration is done by a shop having
the proper instruments and factory training.

Does that sound reasonable?