Connecting Additional Devices to the Remote Turn On Lead
Using a 30 amp SPDT relay,
connect terminal #87 to constant 12 volts positive with a fuse rated to the sum of
the additional accessories you've added and the components you need to turn on.
(If you have two fans rated at 5 amps each and a neon light rated at 10
amps, you would use a 20 amp fuse plus 200 ma for each amplifier and processor.)
Connect terminal #85 to ground, terminal #86 to the remote turn on
lead from the head unit, and terminal #30 to each accessory with an appropriate fuse.
A fuse (not shown) could also be used between the output of the relay (#30) and the remote turn
on lead of the amplifiers and/or processors for extra precaution.