I purchased my OEM Bosch Euros from
Capitol West and paid an extra $15 for an adapter kit they sell, with instructions, to use with the existing US wipers. The installation was relatively straightforward.
I had my indy run the vacuum lines for the height adjustment function, which works well, and is very functional when carrying full loads. I've attached a pic of the switch setup. I had some initial troubles getting the correct parts, as there are some options. I pulled the switch this morning to try and find some part numbers. Unfortunately, I couldn't locate the part # for the switch panel, but I can tell you that you DON'T want part #126 689 00 80. Regarding the vacuum switch, DON'T get part # 124 800 06 73. It doesn't work properly, for some reason, on the 126. It appears, though odd, that the part # on the CORRECT vacuum switch is 000 800 04 73. Good luck.