OK so i bought this 91 Rs no radio in it,,,,I have bought a sony f5700 and was going to install of course harness has been cut wires every where and i do not understand the fuse box the one that says radio will not take a 2 blade fuse


SO CONFUSED HERE

 

Have a look At this thread he seems to be having the same problem.

 

I dont know why your fuse box doesnt have 2 blade fuses but there isnt much wiring to install a head unit.

Red-usually ignition
black-usually ground(or use any ground source)
Yellow-power(or you can tap a 12v power source such as your cig lighter I think)

All of your speakers you can tell by opening up the dash and looking at the wire colors. And opening up your sail panels and looking at the speaker wire color.

While you can do it this way the best way is to get a wiring harness. Its much easier/cleaner.

As for your fuse issue. I have no idea.....

Nate

 

Seriously, even easier then finding the color of the speaker wires at the speaker (especially for those under the dash) is to us a double A battery and try each combo of wires while listening for a click. It takes like 5 minutes to figure them all out.

But yeah, A harness is by far the easiest...I had my fathers installed by the time we got home from the store (about 10 mins) except the mounting hardware.