[mikegett]

I know it sounds insane but the stock head unit could probaly handle a 2 ohm drive from the tweeters. Most of the factory head units that we make are for toyota but they can all handle 2 ohm at low wattage. A tweeter will run very nicely with ten watts thrown into it unless it is a aluminum dome. What they will not handle is bridging the amp. This would not be something that I can recomend but I just thought that I would throw it out there. Any manufacturer is only going to recomend it to be used at four ohm so this would void any and all waranty's.