I have a V2-A, and I picked up a couple of small computer speakers (
about 70mm on a side) I velcroed them onto the shelf behind the pilots
head. One for the vario, one for the radio. I used a four pin connector
to the ships wiring so the panel is still removeable. One good feature
is that the speakers are near your ears, so the volume can be low,
which saves battery power.

GB