I am getting an intermittent front lamp warning message on my 2010 K1300GT but all the lamps appear to be working. During my pre purchase ride, the seller and I dropped by the local BMW dealership to ask them about it. The service guy eyeballed the low beam headlight and and said it was aftermarket and probably causing the fault to appear. He said they get bulbs off of Amazon due to the BMW price but he did not volunteer which brand they use. Can anyone tell which brands they have used successfully from the many brands appearing on Amazon? BTW it is a Xenon bulb. Thanks.