I bought some Bx's from P.P. with the pigtails. I had originaly installed them in my '99 ML430 and they worked great. I did the install today in a '01 ML55 that already had the old style xenons and the xenon bulbs do not light up at all. The halogens work on High Beem, but that's it.

P.P. said that I need the pigtails for an '01 even though it came with xenons, and they thought that I might need to get the AAM reprogramed.

Help!!