Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello!
Is it possible to get auctioneer to auto undercut?
when you put an item you want to sell into the auctionhouse tab and the price is "fixed" to let's say 1silver cheaper than the current cheapest auction ?
If not, are there any addons which can be used for this ?

Aux does this: viewtopic.php?f=63&t=21102
It does more than just that though. It makes a live scan for other auctions of the same item in the ah, then it shows you a list of the auctions sorted by unit price, then it automatically selects the cheapest one with the same stacksize as your auction and suggests a 1 copper undercut. You can manually select another auction to base the undercut on.