I have made a harness which is without relay and used it with ms-8.
I have an issue of audible popping sound when HU / car is turned on.
I was praising Technic's harness on other thread as I thought it would also help to avoid popping sound.
Waiting to see results of your experiment.
RETROFITS: LCI Conversion - LCI Xenons - LCI Tail lights - Memory heated seats
- Folding mirrors with auto-dip - CIC DAB Plus - Combox - 6FL - 6NF - 6NR - BMW
live & Internet MODS: Eibach Sportsline - AluFelgens CS7 - MS-8 - SWS-8 - Gladen