I have never seen or heard of a GT5 specific owners manual, if there had been, one would assume it would have been reproduced by now. There are certainly no GT5 specific wiring diagrams out there. Each of the later cars was very much hand built with what was on the shelf at the time.
If anyone would know it would be Peter Havlik, he is keeper of the most comprehensive late model registry.
What year/serial # is your GT5?
Julian
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