when i bought my 1989 crx hf, it didn't come with a radio! it seemed it got clipped off and someone stole the radio! so what right now it is bare wires! i have found all 4 speakers wires and ground wire! i cannot figure out the other three wire is for! i checked the wires with a test light but none are the constant 12v live power wire! what is the blue/white wire for? and the red/black wire, and the other wire is i dont remember! can you guys help please! thank you!