correction, noone I've set this mod up for uses the 12v power adapter. I have two that use ipod direct to the input, three that use the exact same system as I do (blitzsafe Universal IPOD adapter) and one that uses a harmon/kardon drive+play.
MOST RECENT NEWS: the user of the drive+play had his wired direct to stereo harness and had a H/U glitch over two weeks in with no problems beforehand. This could easily be a problem with the H/U and nothing to do with the mod but I feel the need to write it up. He can only play the first two tracks of his CDs (?) I would recommend using either my exact system (blitzsafe) or direct IPOD > input from now on.
whitman