Steering wheel controls will work with almost any HU, but you need the ASWC-1 module that this guy didn't get. They're cheap and fairly easy to hardwire into your harness. The nice thing about them is that they automatically detect and assign your steering wheel buttons. Although I have read that you still have to program in the "hang-up" button for our cars, pretty minor.
Here's some more info:
ae64.com - Head Unit Installation with Subaru 20-pin Harness
96accord, 8 weeks is a long time. I ended up buying something every other week to help with the wait ha.