I have a 1988 Honda Accord. Yesterday I replace the cassete player and tried to install a CD Tuner. The CD Tuner requires 2 power line. One for the Main Power and other one for it's Memory power (which requires constant power even after when I turn off the switch of the car. I got the main power line from the existing wires of cassete player which supplier power with the Ignition switch. But I can't find a constant power line, which needs to be connected with that memory power line of the CD Tunner. Any suggestions how to solve the problem?

 

Just run another wire from your fuse box. Use a light tester to see which wires have const. pwr.