I am looking for an intercom system, stereo preferred. 5 person.

Try the avshop.com. Softcomm ACT-6ps is a stereo intercom with integrated stereo input for ipod or mp3 $230.00. Avshop design A200 stereo headset $90 a set. And if you run open cockpit try Oregon aero micmuff part #90020. They also have portable intercom units for about the same. This is what I run in my cat and it works like a charm.

I will take a look, I do have an open cockpit.
Thanks

Do they stay on well at speed?

Above 75 they get a little loose but the clamping force is adjustable. I have small windscreens and can run over 75 with no problem. I can't imagine much of anything staying on your head at speeds over 80.

Piratecom said 100mph+ with there headsets. But $3,000 for a mono 5 place system. If it was stereo I would think hard, and might have it