1991 corvette radio problem
Thread Starter
6th Gear
Joined: Apr 2013
Posts: 6
Likes: 0
From: Murray KY
1991 corvette radio problem
Hello, my 91 radio does not work. The orange light just glows and nothing reads out on the radio display. The power antenna does not work as well. When you click the radio on nothing happens, no sound no display. I bit the bullet and bought a new exact radio. It's just two wires to plug in and still the same problem. Everything was working fine, all the speakers where playing fine before the radio went out.
Any ideas? Please help and thank you!
Any ideas? Please help and thank you!
Cruising
Joined: Apr 2014
Posts: 11
Likes: 0
From: Seacoast NH
Hello, my 91 radio does not work. The orange light just glows and nothing reads out on the radio display. The power antenna does not work as well. When you click the radio on nothing happens, no sound no display. I bit the bullet and bought a new exact radio. It's just two wires to plug in and still the same problem. Everything was working fine, all the speakers where playing fine before the radio went out.
Any ideas? Please help and thank you!
Any ideas? Please help and thank you!
See this video for location and removal instructions:
Melting Slicks
Joined: Jan 2009
Posts: 3,181
Likes: 286
From: Puyallup Washington
You need to get the 1991 Factory Service Manual, which is a 2 volume set for the 1991. The second part has the electrical schematics so you can troubleshoot the system.
First you will need to let us know if you have the Bose or non-Bose radio in your car, as they are different.
Both use the same RADIO fuse in the main fuse block and the RDO fuse, #2 in the auxiliary fuse block. The Bose also uses the CTSY fuse in the main fuse block.
Your system is a 3 part system. The radio control head has the power switch and the controls and is mounted in the console. Under the dash on the passenger side is the radio receiver box. It has all the electronics and sends the audio out to the third part of the system, the speakers. It also controls the power antenna.
Since the new radio control head did not fix the problem you will need to look at the fuses and possibly the radio receiver box, which is in a nasty place to get at. Good luck.
If you do not have the service manual I have an extra Volume 2 of the set, which has all the electrical schematics, which I could sell fairly cheaply. If you would be interested PM me.
First you will need to let us know if you have the Bose or non-Bose radio in your car, as they are different.
Both use the same RADIO fuse in the main fuse block and the RDO fuse, #2 in the auxiliary fuse block. The Bose also uses the CTSY fuse in the main fuse block.
Your system is a 3 part system. The radio control head has the power switch and the controls and is mounted in the console. Under the dash on the passenger side is the radio receiver box. It has all the electronics and sends the audio out to the third part of the system, the speakers. It also controls the power antenna.
Since the new radio control head did not fix the problem you will need to look at the fuses and possibly the radio receiver box, which is in a nasty place to get at. Good luck.
If you do not have the service manual I have an extra Volume 2 of the set, which has all the electrical schematics, which I could sell fairly cheaply. If you would be interested PM me.
Advanced
Joined: Jul 2014
Posts: 50
Likes: 0
From: Portsmouth VA
I just bought a 1991 with 27,790 miles and it’s having the exact same problem. Mine is a Delco Bose system. The light comes on but no sound from the radio. The antenna won’t go up. The cassette player will not play. I dropped the panel and confirmed all fuses are good. I have “heard” that you can remove the head and the CDM, install a modern radio in place of the head and use a bypass kit that will allows you to tap into the power, antenna , etc. Doing this, you have to replace all the speakers with standard speakers without the small Bose amps. True? Partially True?
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
I love how people make things seem so complex.
Yes, the Bose blows, but the stock Delco system has the same architecture! Except that the CDM for the Delco is the amp...
Remove the bose hardware, install real hardware.
You can get adapters to convert to send signal to the bose, but they suck... and the system ends up sounding like a Bose!
Yes, the Bose blows, but the stock Delco system has the same architecture! Except that the CDM for the Delco is the amp...
Remove the bose hardware, install real hardware.
You can get adapters to convert to send signal to the bose, but they suck... and the system ends up sounding like a Bose!
Advanced
Joined: Jul 2014
Posts: 50
Likes: 0
From: Portsmouth VA
I love how people make things seem so complex.
Yes, the Bose blows, but the stock Delco system has the same architecture! Except that the CDM for the Delco is the amp...
Remove the bose hardware, install real hardware.
You can get adapters to convert to send signal to the bose, but they suck... and the system ends up sounding like a Bose!
Yes, the Bose blows, but the stock Delco system has the same architecture! Except that the CDM for the Delco is the amp...
Remove the bose hardware, install real hardware.
You can get adapters to convert to send signal to the bose, but they suck... and the system ends up sounding like a Bose!
But first... I have a couple of other issue to get on top.
Last edited by rmytych; Jul 24, 2014 at 10:35 AM.
