No Response From Radio

SYMPTOM
* NO RESPONSE FROM RADIO

POSSIBLE CAUSES
- Antenna/ground strap installed improperly
- CCD bus (+) circuit open
- CCD bus (-) circuit open
- Fused B(+) circuit open
- Fused ignition switch output circuit open
- Fused ignition switch output shorted to ground
- Radio doesn't communicate
- Radio won't communicate
- Radio blowing fuses