Just buy a DECENT set of H7 xenons if you want xenons, none of this eBay tosh.
Had my Stealth kit from HIDS4U in for nearly 2 years now, same bulbs (DRL disabled but leave lights on all the time anyway) and no issues with wipers/auto wipers.
I did question them before buying and they were aware of the issues that they used to cause with certain modules on certain cars and state that theirs have been designed to prevent failure.
I live near their HQ and have been in before, nice bunch so I'll take their word for it.
NOTE : Under new MOT rules you WILL fail an MOT for having them in, even if they line up correctly and don't blind anyone so always worth putting the H7's back in prior to it. Thankfully it's all of 5 minutes to swap them
