Cant find hot wire

I have a 87 nissan pickup and i cant seem to find the hot wire for the radio...can anyone help?

+12 v constant = red / black stripe

+12v ignition = blue

---OK, first of all, I appologize that when I went to copy wiring diagrams for the `87 Nissan 4x4 Picjup I was working on that I didn't copy everything. I looked in my copies and thet was one thing I didn't scan.

---Now, what you have to do, since there were at least two engines I can think of in the year model you inquired about, is find the wiring diagrams for that year/make/model/engine. If your VIN says that it is an 87 made after June, then it would actually be an 88 in the manuals. If you head to the library and look in the reference section, you might find some better diagrams that I have found, some of the best. Look for service manuals called Mitchell. The Mitchell Service Manuals for "Engine and Chassis Electrical" and then you should find just what you need. They have the most extensive diagrams and at the end of each section they include notes on whatever has been changed in the following year.

---The only other advice I would have is to Join a MSN Community for 720s, the Nissan of those years would fall under the 720 models that include Datsun. What you find in Datsun Service manuals might also help you with your Nissan considering they are both 720s.

---Wish I could offer you more than that. Good luck.

Here's the URL for Nissan/Datsun 720 Pickup Owners Group on MSN (lots of info just on the opening page)

---The wiring on those models was not something as simple as you might thing. That is all I am saying in this post. When I copied the wiring for the job I was doing, there was a reason why I sat for an hour at the library and sorted through what I needed and didn't need before I scanned.