Why are my dashboard needles shaking after I tried installing an aftermarket radio into my 2004 Honda Civic?

Why are my dashboard needles shaking after I tried installing an aftermarket radio into my 2004 Honda Civic? - 1

Was the install successful? If so, the radio may be drawing to high an amperage and causing the power to the gauges to fluctuate.

No the radio isn't working. I unplugged it and my car is still having the same issue

You messed up something badly.