Midland 77-118. Three wires coming out of unit red,black,and orange. What is the orange for? Also need manual.

good question

best answer is

to look what youve got

you will have 5 wires on the adonis

wire the black wire and the copper screen together

then use a multimeter on ohms or beep test
place the black neg wire of the meter on the screen
and test the orange or other than white or yellow{they will be audio from the mic to the rig}

the orange or other like green will be tx enable
and if you press in the TX button and with the back and screen connected to the beep test on the meter
place the red wire on the meter
on each of the other cables like orange etc
you hear it beep
let go the TX button
if it stops and start beeping as you press and let go the TX bar

then this is the TX enable to the radio

so all you need really do is look up the radio type and its plug wireup

midland is 1234 ground /audio /TX enable/ output audio enable

most often uniden and cybernet chassis used different wireup
but had conformance to type
so uniden shared a comon wireing as did cybernet types as midland is

you have a three wire power plug look inside your radio at the point where it enters the radio. Look to see if the middle pin is connected to something .some are some aren't No biggy it works with it or without it.

Your wires Hunter thermostat
Blue C
White E
Black E
Yellow Y
Orange O
Red R
Green G

Since i don't know what brand heat pump you have, i am assuming you have a cool active reversing valve, therefore the orange wire will connect to the "O" terminal. If you have a heat active reversing valve the orange wire would be connected to the "B" terminal. You will know it is wrong when you turn on the system in cooling mode and it blows hot or warm air. Another way to know quickly is to go out to your outside unit when you turn it on in the cooling mode and feel of the suction line(the large copper line coming out of your condensing unit) and see if it is cool. If it is, great. If it is hot then you would have to switch the orange wire to the "B" terminal.
Hope this helps.

this is for a three way switch do you have two switch if so hook the red to the orange and black to black and white to white make sure you ground it to the fan and everthing shoul work fine good luck

The three main wires you need to worry about are the
Ground (Black) Battery + (Red) Constant + (Orange)
As far as the speaker wires goes you are going to have to trial and error them. They are usually color coded so for instance one wire is purple with a white stripe there would be a purple wire with a black stripe that would correspond with it. Every vehicle is different in how it is wired. I know installing a stereo looks intimidating but just split up the wires and you will see it is quite simple. Do a professional job and use crimp connectors, going the electrical tape route is never worth the time it saves.

red and orange is your hot wire.

Normaly black is ground red is batery and orange is ignition.

You can Go with what you have
PlEASE RATE My ANSWER

black= power wire - red= power wire+ blue= a/c control orange#1= thermo orange#2= common