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I would love to put a set of these in the Charger, but a buddy here bought his '70 with aftermarket gauges and is having all kinds of wiring and power issues. Would you have to upgrade your entire wiring harness and alternator to run a set of these?
Go to the website and check it out. The installation instructions are on there. You are basically putting in a new harness for the new gauges that run off of a processor. all electronic sensors etc. It actually looks pretty simple to install.
Simple except it is important for people to realize this is not plug and play. You can't just buy the cluster and find all the wires you need already in your existing dash. All the sensors on your car originally used one wire back to the dash. Body being the other 'wire'. The new sensors you need to install for this dash to function uses multiple wires and they have to be brought through the firewall. ie drilling holes.
Would you have to upgrade your entire wiring harness and alternator to run a set of these?