mikesis300
The '04 USDM STI combination meter into an '03 WRX as I stated in one the first threads regarding this does work. I posted a schematic of what I fabbed, and to date , and I mean today, it still operates without a hitch.
I haven't figured out why it worked for some and not for others.
I can only reference you back to theat schemtic I built.
L J