Stereo getting no power.
I'm trying to install a new pioneer head unit to replace my old stock one in my 1997 TJ. Today I went out to replace it after splicing the wires for the wiring harness and doing all the prep work, and found out the stereo still would not work. I was hoping that the reason my old stock stereo did not work was because of the head unit itself, but I was not so lucky. I was hoping you guys could help me out with a few questions that would help me troubleshoot.
The first question I have is why the head unit is not getting any power. My Jeep has a host of electrical problems (like having to punch the steering wheel for the turn signals and wipers to work). I changed the fuse and still no help. Any ideas on why this is?
Secondly, on the wiring harness that I purchased from Wal-mart has three adapter things. One large gray one, one smaller gray one, and one small black one. Most of the wires seem to come out of the large gray one, but it does not connect anywhere. The smaller gray and black ones both have connectors, does anyone have any idea why this would be or if it's even a problem?
Lastly, the black wire that comes out of the plug that goes into the back of the stock head unit goes connects somewhere else than where all the other wires go. It seems to go through the firewall behind the top left corner of the passenger air bag. Does anyone know why this is/where it goes to/ and if I have to connect anything in the same spot from the after market head unit?
Thanks a ton!