Hi guys, I am new here so if I posted in the incorrect section let me know, but I think this is right. I just recently bought a used 1997 Honda Civic LX as a commute car for class everyday, but upon inspecting it closely I have found some unfortunate problems that I do not know how to diagnose or how to fix. I'm gonna explain the problems and number them, so if you know what is wrong or how to fix it, please put the number beside your post! Thanks again guys.

1. Okay so the first problem I ran into was when trying to install my aftermarket stereo. I have a sony cdx-gt520 that does fit, however I am not sure if the OEM harness is even in the car. The guy that previously owned it had an aftermarket headunit installed and someone decided to break into the car, messup the dash a bit, and steal it. This is where the first problem comes in. I have no idea what these wires are. There are 3 "sets" of wires. The first two are actually capped by green harnesses, one small and one medium sized. What are these for? Do these go to the head unit, because I looked at the aftermarket wire harnesses, and they dont look like they match either of the green harnesses. The 3rd set of wires don't have a harness ending and are just frayed and look like they have been crimped to original wires, I am wondering if the thief ripped these wires out and took the OEM harness with it? Though I don't know why they wouldnt just unclip the harness. Which of these is the OEM Harness?

2. I understand that some Civics have keyless entry, which apparently has to do with the head unit. Is this a very important factor in reinstalling an OEM harness? I do not have a keyless entry button, but I know that there are two different harnesses for keyless and keyed entry.

3. I found a diagram of some of the car wires, could I just directly connect my aftermarket stereo to the cars wires by soldering or crimping?

I'll post the rest of the questions once these are covered. Thanks again guys.

 

There are 2 or 3 plugs on the stock radio, one is for standard radio functions and the other is for keyless entry. If you don't care about that working, simply leave it unplugged.

Generally the best thing to do here is cut the radio plug out of a junked car and splice it to yours so you have a stock plug again not a cut off harness. Then use a harness adapter to hook up the aftermarket head unit. That makes it very simple to replace the head unit again should you want to.