I am hoping to hear its just a bad set of RCAs from the HU to the EQ or accidentally placing the RCA in the wrong spot off the HU to EQ.
Sometimes we get in a rush man,. Ive done it lots of times myself, and swore up and down I did this and that. LOL
Ive had a cheap pair of RCAs that got pinched pretty good and broke on backside of the HU from a tight fit and later used a set of 90* RCAs in the past in my 90 240SX