400a autopilot to Century Non-slaved HSI

[rmorris]

I'm getting a bunch of avionics finally swapped out
- Century non-slaved HSI
- dual KX155 w/GS one to a KI-209 and the other to the new (to me) Century HSI
- KLN 90B w/annunciator
- King DME

taking out old nav/comms and Loran, but keeping the ADF (still works

Here's the set-up....the guy doing the work says he is having problems figuring out the 400a to the HSI. Apparently it gets its info from the old DG (then there is a little know on the control unit where you set the heading you want it to fly). So he tells me today that he wants to put the DG back into the plane just to have it hooked up to the autopilot. My main concerns: 1) I would like to have it hooked up to the HSI like the other new stuff, 2) would like to have that empty hole avail for when I can finally afford to add an engine monitor, and 3) if I am going to have something redundant, it would not be dg (already have a magnetic compass for that redundancy...would put another gauge there, like electric AI).

Here's the question....
- anyway to hook-up the 400a to the Century HSI so it will get it's heading info from there, or even better to get the direction from the heading bug on the HSI ??
- anyway to just replace the 400a control unit (with that little heading knob) with a newer 400 (or something compatible with all the other stuff like servos, etc) ??
- any other good alternatives ??

-Robert
rmorris@agsi.us
________
Medical marijuana