Hello, I'm a newb and I've got a 2003 WRX with instruments that won't light up and power door locks that won't work from the inside (yet the remote still works...) I finally gave in and had a local guy diagnose it as a bad "integrator unit." After some searching, I heard rumors of a "BUI", located next to the steering problem. Can someone tell me what a BUI is and if I'm looking in the right direction? If it is the BUI, how big of a problem to fix is this going to be? (I know a new unit is expensive, would it be user replaceable if I found a junkyard unit?) Thanks for your help.