would like to install a power antenna in my 89 formula. has 3 wires comming out of it, need to know what each wire is for

 

One is for ground,one for constant +12v,and the other for switched +12v that comes on when the radio is turned on.This will usually go to the remote output of an aftermarket head unit. If your ant has universal aftermarket color wires on it,then red is 12 constant,blk is ground,and blue goes to the remote from the stereo.Hope this helps ya.

 

When I did my power ant, there were 3 wires... they went to a relay under my dash on the passenger side, if you remove the lower trim piece that has the "PERFORMANCE SUSPENSION" decal on it, under there... just rand the pink wire to the radio, the rest of the wires were there. so here is how it works

1 PINK wire from the Radio to the relay
1 Black (GROUND wire to the relay)
1 Orange (power) wire to the relay

IF I REMEMBER RIGHT:
1 Ground wire from the relay to the antenna
1 Gray wire from the relay to the antenna.
1 GREEN wire from the relay to the antenna

to test it is simple, take the wires and hook it up to a 12v power.

DO NOT HOOK THE WIRES DIRECTLY UP TO YOUR RADIO... THERE NEEDS TO BE A RELAY OTHERWISE IT WILL GO UP AND NOT DOWN, OR VISE VERSE. and it might blow something in your radio, it was not designed for that kind of power.

hope that helps.

 

Is it an aftermarket or factory piece? The aftermarket will already have the relat circuit built in.

 

well i hooked the switched part of the power antenna to my aftermarket cd player and it workes like it did with the stock headunit in it... power on on the headunit turns the antenna up..

 

with an aftermarket radio alpine 7893 whats the best way to hook up

 

I doubt highly that the radio will be able to withstand the draw from the power of the antenna motor... You will need the relay and hook it in...

Here is how, sorry electonic guys, I know all my symbols are not pefect but its close enough for this purpose

John