How do you install the towing light wiring harness on a 1995 Mazda Miata to tow my scooter?
You can splice into the brake lights on in the back of your
Miata.
The brake light assembly should be held in by a single Phillips
head screwdriver at the top, revealed when you open the trunk.
There are additional bolts behind the brake light assembly, that
are revealed when you remove the faux interior carpeting that are
held by small plastic pop fastener. These can be removed by using a
fingernail or small flathead screwdriver. Carefully pull the center
pin up, then you can remove the entire fastener.
Vampire taps are the easiest way to tap, you'll need to compare
the gauge of your light wiring harness to get the correct gauge
taps.
The bulbs should not have polarity, so it shouldn't matter which
is power and which is ground.