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I have a 2007 (new body) which has a basic gauge cluster installed; Tach, speedo, gas, and temp. I want to upgrade to a cluster that includes a volt and oil pressure gauge. Is this a plug and play upgrade? Are these wires included in my current wiring harness even though I do not have them in my cluster now?

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I believe it is plug and play. Just look up on google to confirm. I believe if you get the correct corresponding cluster, the harness will automatically pick up the other gauges. At least it does this on my year (2002). You never know with GM... if you had an 02 or older, I'd tell you to upgrade the bulbs to LEDs too but the 03+ are pains in the ass to do that. :/



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I looked at several diagrams and I believe this is a plug and play swap. The gauges are routed through the logic side of the ECM and the volt and oil both have sensors already installed on the block.

Thanks for the reply

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