aftermarket boost gauge

[Bryan Foster]

I am new to the list, a new owner of a '91 200 20V.  I have read some
info on aftermarket boost gagues.  Seems like people use VDO or Autometer.
Does anyone know if these gauges come with all the necessary
hardware/fittings to hook it up?  Also, do people have a preference for
tying it into the ECU pressure transducer line or some other
manifold/turbo line?  What would be the most harmless tie in point if the
system suddenly developed a leak?  I want to mount the gauge in the
glovebox for spot checks of boost pressure and troubleshooting.

Thanks,
Bryan Foster