I was in the process of packing for a 600 mile roadtrip this weekend. I went to the store. When I got out of the Tahoe, the radio shut off as it normally does when I opened the door.

When I got back into the vehicle after shopping, the radio did not turn on when I turned the key. I pushed the power button and nothing happened and then also noticed the clock (part of the radio) has no power at all.

I checked the fuse and it looks fine (swapped it out just in case). The door chimes, windows, and dome lights all seemed to be functioning correctly.

Any ideas?

Thanks for your time!

 

There are multiple fuses. Check your owners manual. On my '01 Suburban, there are fuses for the radio both in the underhood fuse panel, and the driver's side instrument panel fuse box.

 

Thanks for the help. It looks like the Tahoe and Suburban use the same manual.

For the driver's side instrument panel, I checked and replaced (it wasn't blown):
'RDO I' - Audio System, Onstar


under the hood, I checked and replaced (it wasn't blown):
'RADIO' - Audio System, Instrument Cluster, Climate Control System

I also checked
'RDO AMP' - Radio Amplifier

 

If it were me I would pull the radio out and put a test light on the red and orange or yellow wire and see if it has power to the radio.

 

So I got back from my roadtrip last night.

The radio is working intermittently, with no rhyme or reason. Do you think something is wrong with the radio itself or something with wiring?

 

This morning I realized that if I press the 'Recall' button, the display lights up for a few seconds and shows the time.