LED bar graph tach kit?

Our classic vehicles electrical can generate spikes from so many different sources that fancy modern electronics never live very long there.

My GTX has been running "fancy electronics" for over 20 years without failure including an Alpine high end deck.

Correct about discussion though.

I'm looking to hide a set of LED's in the cluster so I don't have a big stupid tach blocking the speedo. I'm looking to keep the dash as stock looking as possible.

If you can't contribute to solving the problem in a positive manner please don't post. Thanks! Not aimed at you Redfish.