Is there some kind of extension for an ipod touch 2g for my otter box?

I have a 2g ipod touch and an otter box on all the time. I have An ihome that im trying to start to use it more, but i cant plug it in with the case on. Its annoying to take it off and put it back on. And i have to like clean every inch of it when i take it off. Idk why. So it there some kind of extention for the ihome plug so i dont have to take off my case?