Radio wiring question, harness thrashed

JC6715 said:

Trying to wire up a new radio, the switched power wire of the old harness works, however, the constant power to retain the clock and radio settings wire(s) do not work.

I can't find the problem, so would I be safe in runnging a 16ga wire straight from the battery or do i need to track down why the constant power isn't working?

Thanks for the help guys.

Click to expand...

67CoupeDriva said:

If you're just powering the constant 12v you shouldn't need much (250 mA may be plenty). Someone smarter than me could tell you the max sized fuse is for the given wire & distance. Barring that, if you're supplying power to actually run the deck (esp. if it's high powered) you'll need a larger wire & fuse. Just keep in mind the primary reason for a fuse is to prevent the wire from overheating and starting a fire, so I'd use the smallest one that doesn't burn out under normal use.

Click to expand...