95 Golf radio coding

[james accordino]

I have a VW radio made by Clarion.  It is from a 95
Golf.  I want to install it in my 89 200q.  The
connectors all plug in and I get the red security
light flashing, but no display.  What is the procedure
for coding this radio?  Can anybody help me obtain the
code?  I thought I remember reading that someone
worked at a dealership.  The radio is NOT stolen!  I
appreciate any info anyone can supply.

TIA
Jim Accordino