Autometer gives you new sending units with the guages, they are the same ones the factory uses, nothing special there. For the power and lights to the gauges, you can see in the second picture how i just ran everything to the first gauge and then just connected it to the next gauge in line instead of having 5 sets of power, ground and light wires. On wiring up the gauges you can use the wiring for the factory sending units, lights, and I think there was a power and ground in there also. If this is something you are considering I can pull mine off and take some better pictures of how its all wired up for you