[Elecraft] KX3/KXPA100 as a mobile?

[Steve KC6ZKT]

I have been thinking about installing an HF mobile rig. One idea that
appeals to me is a KX3/KXPA100 setup, where the radio is can be placed
and hooked-up in (passenger side) glove box, and the amp is more
permanently installed under a back seat.

I have two questions:

1) If you have tried this, can you tell me about your experience? How
did it work? How was it set-up? Etc.

2) What will I be giving up if I cannot really operate the controls on
the KXPA100 and only have the KX3 in front of me?
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SteveSgt, KC6ZKT, @CM97bj73