Got my a/c system working. Yes, I know there are many threads on this (aux fan). I was able to find which relay which I tested to be good, where can I apply 12 volts to jump the fan?

Can I insert 12 volts directly into the relay ports? Please help

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1976 Mercedes 240D (Sold)
1985 Mercedes 300D Turbo Diesel: 500,000KM
1986 Mercedes 300E (Sold)
1988 Mercedes 300E (Sold)
2002 Mercedes C240 (Sold)
2008 Mercedes C350 4matic

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