Hello, I have spent two hours online looking for a wiring diagram for a 98 volvo s70, so that I can install my New Stereo. Thought I had the right one but all the colors were wrong, Need to know Speakers + and -, battery 12v, and 12v dc, also ACC, ILL, and thats all, Thank you.
You can also try to buy an oem wiring kit for your make and model vehicle. You just splice in the connector to your new radio and plugs into your factory connector. You can look online like Best Buy or some where that installs radios.