I listen to audiobooks in my car constantly. I'm not sure I could get from one place to the other without someone blabbing at me. It's a good thing.
What is interesting is that if I am listening to a dark, suspenseful book, I find that I come home and write in a dark and suspenseful style. And when I listen to a lighthearted chick book, that's how my voice comes out when I write. I suppose that could mean that, over the years that it takes me to write and edit a book, what the end product ends up an inconsistent mish mash of styles. I'd like to think that it all evens out, but I have to wonder. I might not even notice!
I also wonder who is really writing this book. I suppose we take our inspiration from all things around us, but it just seems disingenuous. On the other hand, maybe taking the best of what I'm exposed to makes me better...or at least my writing better We can hope.