Aside from needing a transformer powerful enough for the additional chimes,
you need to run wires in parallel to each chime. Essentially in the existing
chime you have three terminals - Front-Trans- Rear, you need to run wires
from each of those terminals to the matching terminals on your additional
chimes
"DL" wrote in message
news:r7bke.15912$Fv.11285@lakeread01...
We would like to have several (3-4) chimes activated from a single
doorbell button. What would the best way to do this.

The searches I have done talk about a more powerful transformer, but no
specific wiring instructions.