Yes the lights are 12v, and I connected them to the same circuit (on the printed circuit) as the existent cluster light, so that way they get control by the dimmer also.
The voltmeter is connected (soldered) also to the printed circuit where 12v is running when contact is ON. So you get a cluster that you can remove easily.
The Fuel and the Temp gauge are (as far as I know) the only one to use 5v.
OldVart said
Excellent work and photos MoparFan! C'est parfait!