Looking for newer Tahoe stock head unit

[rywith22]

I have an 07 LTZ with Navigation, Bose, DVD and Rear Entertainment System and am looking to upgrade the head unit to one of the newer stock ones so I can get the USB plug and be able to use my iPod on the screen and such. I know the 2012 ones won't fit so anything else would be fine as long as it has the USB plug available. So, does anyone that's upgraded their head unit have the original or know of any place I can find one for a decent price. There's ones on eBay for like a grand and if I wanted to spend that much, I'd get an aftermarket one instead....

Thanks in advance.