I'm thinking that I shouldn't have taken mine out and GAVE them away.

Oh well, you live and learn.

You have to swap to wires coming on the gauges from the volt side of the gauge and with a sender from VDO. Problem solved.
Those gauges didn't come with their own senders.

I bought the VERY last set, as with the Wolf rear lower addon spoiler and sold them on to Radman on here. So good luck in finding them new.