Thread: trying to get stereo to work. (fixed)

Colors could be slightly different as I just did a google search for Sony Harness but start off by disconnecting your subs and stuff, like you were just freshly installing the headunit only working with the headunit harness to car harness. Now 4 pairs of those wires are gonna be for their respective speakers, but make sure [remember colors may be slightly different] Yellow is your constant 12v power so make sure you got it into whatever the constant is on your car's harness, Red is the Accessory/Switched Power, make sure this is also connect to its respective wire from the cars harness, finally take the Black ground and either connect it to the black ground wire or [in most cases] just find a good metal ground source. Check a few places just to be sure your current ground source doesnt just suck. In some cases if you dont have the antenna plugged in to the head unit it wont turn on (as thats also a ground), i've experienced this before. After you've got the unit working, then plug in the rest of your outputs and such. I'm not familiar with that head unit but i had one where the connection to the faceplate was a little lose and would cut off hitting big bumps so after you think you got your wiring right, give the faceplate a light push in to be sure its got a proper connection. OH and yes you said there was a fuse in the back of it somewhere? Def check that first lol

You can always take out the head unit and try running a wire from the Constant and Switched pins to the positive terminal of battery and run Ground to the negative terminal to verify the head unit actually works. That should narrow it down to a wiring problem somewhere. If it doesn't suppose it might be the fuse in the head unit or its dead from some other reason...

correct.

also just realize that you have a B15. not sure about that, I've only done one on the B15 and it did not have any problem.

You need a digital multimeter that will read dc voltage. You say you have a test light. You would need to ground the end, usually a clip is on the end of it, and the sharp point is where you probe your positive wires. But be careful with using a test light, not knowing what circuits you are testing can trigger airbags to deploy if testing the wrong wires.This is because of the high impedance of the light bulb in the test light. Plus the test light does not show you actual voltage. Your test light bulb could light up but you still do not know how much voltage is there. It could be 9 volts there, but that is enough to light up the test light but not enough to drive a radio or an amplifier. I suggest a getting a cheap multimeter, I can help you step by step to diagnose it.

I install car audio, alarms, remote starts, etc., and I am ASE certified in this.

BUMP! i took apart the dash again and looked at the 10A fuse that i had overlook before and the stereo now works , i just replaced that fuse and let there be music . fuses cause so much trouble .