Diseasel300, Thanks for the feedback. Confirms what I was beginning to suspect from reading other posts elsewhere. GERMAN AUTOMOTIVE has the side of the cube relay coil opposite the side going to Klima pin 10 being connected to Klima pin 1, a ground connection. That led me to believe pin 10 would provide power.

So, instead of pin 1, I'll use the power source from pin 5 to connect to the relay coil opposite the connection to pin 10.

THE COMPRESSOR RELAY CAN BE BYPASSED AS FOLLOWS:
1. USING RELAY # 001 542 02 19 MAKE YOUR OWN JUMPER WIRES.
(P/No. Mercedes A 0015420219 / Hella 4RD004122-00)
2. TERMINAL #5 ON KLIMA TO #86 ON ICE CUBE, (Solenoid lead) (Klima power input)
3. #10 KLIMA TO #85 ICECUBE, (Solenoid lead) (Low pressure switch gnd input to Klima)
4. TERM. #5 KLIMA TO #30 ICECUBE,AND (SPDT common) (Klima power input)
5. #7 KLIMA TO #87 ICECUBE. (SPDT NO) (Klima output power to compressor)
CLUTCH WILL ENGAGE AND DISENGAGE AT PUSHBUTTON ASSY'S COMMAND