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blinking SYS trouble code

Old Aug 22, 2005 | 10:19 PM
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A guy in my club has a 94 vette. He just replaced the delco radio (not a BOSE) with a Sony and now gets a blinking SYS message near his odometer. The SYS code means that there is an electrical problem or a security problem. A Chevy dealer charged him $80 to look at it and did nothing to fix it. The radio installer is avoiding him. It seems like the computer chip is looking for the old radio. It may be similar to a regular computer that needs to have obsolete references removed from the registry. Does anyone have a solution for getting the blinking SYS to stop?

Thanks!
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Old Aug 22, 2005 | 10:25 PM
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9 times out of ten it's a weak battery.

If they did a stereo install and didn't disconnect the battery, they probably put a drain on it.

Could be a poor install as well, I've seen some funny **** out there.
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Old Aug 22, 2005 | 10:29 PM
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That is what usually happens when you install an aftermarket radio.
I think the fix is adding a few resistors to the wiring. Do a search and you will find it in prior post. I decided not to add the resistors and let the SYS blink. Didn't want to tear radio out just to add a few 25 cent resistors.
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Old Aug 22, 2005 | 11:28 PM
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Thanks for the responses.
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Old Aug 23, 2005 | 01:38 AM
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Go to the audio section. In the sticky posted by Bogus at the top, there is a fix for this problem.
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Old Aug 23, 2005 | 01:39 AM
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gee...

read this: C4 Audio FAQ
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