Havenesh

hi i own a japanese spec E240 mercedes benz 2000 model. i recently opted into changing the headunit to a bluetooth enabled pioneer system. i terribly needed the steering wheel controls for the headunit hence i contacted the PAC support team. they replied with a very good news saying i could use the PAC-SWI Control Pro 5. i actually received one and tried fixing it but it failed. contacted the support team and they said there was a mistake on the online guide and rectified the problem. i would want to try it tomorrow. meanwhile, im just interested to know if there are anyone who has tried this setup and if it worked. im from Malaysia and the module isnt cheap for me. i know i couldve asked prior to purchasing one but its too late. anyways, pls let me know if there is anyone who has done it and has it been successful