Dear Sydney:

The reason we keep ADF and DME is that it's a requirement of our OEM's.

While the use of ADF and DME are becoming more of a rarity with the advent of
approved GPS approaches, they are still used extensively in the international
market.

However, PS Engineering is the only company that has dedicated a pushbutton for
AUX, which can serve as a switched input of your choosing.

And don't forget about our DRAWS option, it's the only one in the world, and
ties into GPS quite nicely.

So we like to think we are making a modern day audio panels, keeping the things
we need to while bringing new capability to our after market customers.

And I can promise you that you will continue to see innovation from us, it's
what we do.

Sincerely,
Mark Scheuer
PS Engineering, Inc.