You can buy a straight replacement unit on eBay or something, but you may end up with the same problem soon. Even if you want the new deck to have a tape slot, there are plenty of aftermarket options out there. Most of them will even have an ⅛" and/or USB inputs.
If you're looking to keep the OEM unit (avoiding gaudy blue lights, avoiding theft, higher quality buttons, consistent look with rest of the interior) and want an aux input, you may also be able to keep the deck you have now and bypass the tape adapter by
making your own aux input!
