problem:
dash lights and tail lights not working (also side lights on headlights) after radio install on my 2000 accord ex

what i've found:
connecting orange illumation wire on new harness is bad.
I don't know why or what it does or what to do to fix it.
that's what i did, i should have read instructions in detail, i know my fault

only other thing i've found is it could be the headlight switch which i replaced but did not fix the problem.

Has anyone else had this problem??
if so what did you do to fix it?
I want to avoid getting it fixed somewhere because a lot of places will charge a lot of $$$$$$$

PLEASE HELP!