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1978 corvette antenna new stereo question

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Old Apr 24, 2011 | 11:39 PM
  #21  
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Well you want a GOOD connection so you don't have to go back and do it again.
And you want the hot connection, not the one on the ring at the top.

Maybe you can find the original cut off orange under the dash......
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Old Apr 25, 2011 | 11:53 AM
  #22  
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THANKS!!! This is helpful, I went to autozine and got those wire splicers so will connect the hot to the cigarette lighter. One more question... if I wanted a toggle switch with just the yellow wire coming from the relay to the yellow wire on the stereo... is that possible to rig... like a push button.
Example, I am liking the idea of having the antenna down when I listen to my MP3 player... so to have that option to toggle an antenna up or down would be cool in my eyes! DOes the yellow wires operate the antenna as a trigger when they are touched together?
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Old Apr 25, 2011 | 02:44 PM
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Yeah, a simple on/off switch on the yellow will give you some control over it.
Just like my earlier post to Motorhead.

Yellow is the trigger.
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Old Apr 25, 2011 | 02:46 PM
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Originally Posted by 78stan
DOes the yellow wires operate the antenna as a trigger when they are touched together?
Yes, but only when the radio is ON.
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Old Apr 25, 2011 | 04:25 PM
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I installed a Kenwood KIV-BT900 Digital Media Receiver last year in my 1980 and a new Metra power antenna a couple months ago. The radio has a blue wire on the harness that connects to the yellow wire. On my radio the power antenna goes down then I switch it to on board memory, USB, IPod, or standby. It only goes up when in receiver mode. Here's a link to the power antenna install:


http://www.calweb.com/~griffitt/MetraPowerAntenna.html


Link to radio install:

http://www.calweb.com/~griffitt/Radio.html


Tony G

Last edited by Yellow1980; Apr 25, 2011 at 06:52 PM.
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Old Apr 25, 2011 | 06:02 PM
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Nothing seems to work!!!! KapsSa... green and grey connected together and touching the red on the battery terminal should raise the antenna, correct????

That doesn't seem to work for me, once more the connection to the relay and yellow cable itself connected to antenna cable on stereo is not raisng the antenna... I think I may have fried it without even realizing it!

Did you say grey and gree touching the positive terminal on the car battery would raise the antenna?
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Old Apr 25, 2011 | 06:34 PM
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Gray = ground, green = switched power, white = hot all the time

I bypassed the relay on my last install. Here is what it looks like:



Tony G
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Old Apr 25, 2011 | 06:41 PM
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If you bypass the relay how do you get it to go up and down? Or the yellow and hot are running directly to the stereo and power respectively? Is your hot cable touching the cigar lighter or fuse box?

Last edited by 78stan; Apr 25, 2011 at 06:48 PM.
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Old Apr 25, 2011 | 07:06 PM
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Orange wire is part of original wiring harness, not sure where it is connected. Yellow is connected to blue wire from radio wiring harness that came with the radio. The antenna I installed does not need a relay, and from posts I have seen in the past it can cause the up/down of the antenna to operate abnormally when left in the circuit path.

Tony G
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Old Apr 25, 2011 | 07:08 PM
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So the way its hooked up your antenna goes up when the radio is on and it goes down when the radio is off?
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Old Apr 25, 2011 | 07:16 PM
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Correct, or switched away from the AM/FM tuner.
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Old Apr 25, 2011 | 08:06 PM
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Originally Posted by 78stan
Nothing seems to work!!!! KapsSa... green and grey connected together and touching the red on the battery terminal should raise the antenna, correct????

That doesn't seem to work for me, once more the connection to the relay and yellow cable itself connected to antenna cable on stereo is not raisng the antenna... I think I may have fried it without even realizing it!

Did you say grey and gree touching the positive terminal on the car battery would raise the antenna
NO!!!! To go up
Green on + term of battery
Grey on - term on battery,
NOT connected together.

Down
Green on - term of battery
White on + term of battery

Did you connect the orange wire?

If you just connected the wires together and touched them to the poss term and nothing to the neg term you shouldn't have fried anything.

Last edited by KapsSA; Apr 25, 2011 at 08:13 PM.
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Old Apr 25, 2011 | 08:09 PM
  #33  
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Yellow80 is dealing with an aftermarket antenna. NOT GM.
Different wires, probably different connections.

Double check your antenna. Some GM 'service replacements' have a small relay connected to the mast tube. THEN you wouldn't use the relay under the armrest.
But the wires you have that were running along the door/kickpanel and the manual switch most likely mean there was no relay in use.

Last edited by KapsSA; Apr 25, 2011 at 08:17 PM.
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Old Apr 25, 2011 | 09:34 PM
  #34  
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IT WORKS!!!! THANKS AGAIN KapsSA!

HOWEVER... I Cant get it to come down. When green is on - and white is on + I hear the motor turning and after a while it stops (as if the slimline has retracted)... but now the antenna just stays up... I manually rolled the antenna back into the starter position and connected the terminals to make it roll up... and it works again. My antenna fully extends! I try to lower it and I only hear the motor turning... antenna remains up! What can I do? What is happening?
When I slide the antenna do the down position it takes a little resistance but then goes down... WD-40?

So to go up:
green +
grey-

To go Down:
green -
white +

I was gonna try green + and white - (opposite of going up replacing grey with white to -)... but didn't want to fry it! BTW: This is useful because if I ever get down to work I can definetly rig a manual switch without using the stereo,,, like how it was before.

Last edited by 78stan; Apr 25, 2011 at 09:43 PM.
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Old Apr 25, 2011 | 10:15 PM
  #35  
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If you can MANUALLY raise and lower the mast the nylon cable inside that pushes it up and down is probably broke.
VERY common problem.

If it goes up under power the nylon cable is probably just catching the wheel it rolls up on. Or the cable broke right at the nylon/mast joint and is just catching the mast enough to push it up. Matter of time before that stops, too.

If it's actually a REPRODUCTION Delco look alike that some of the vendors were selling, it's anyone's guess. Those are pretty problematic.

Replacement cables are available.

http://www.antennamastsrus.com/GM/Ch...01979-1982.htm

Last edited by KapsSA; Apr 25, 2011 at 10:21 PM.
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Old Apr 26, 2011 | 12:24 AM
  #36  
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Thanks a million KapsSA!! Although not exactly good news to hear I'm glad to know what is malfunctioning... hopefully taking it off and replacing the nylon will be an easy job. Thanks again!
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Old Apr 26, 2011 | 03:05 AM
  #37  
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Custom Auto Sound is the WORST!

I have a JVC, all the wiring works, I have an aftermarket replacement antennae, AND it only goes up when the radio is on radio. Not when I am playing a CD, or running the Ipod. Get a grip and do it right.

Jeez.. Custom Autosound?
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Old Apr 26, 2011 | 12:01 PM
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What model of JVC do you have? I heard autosund got better and teh USA-230 is a new product.

Last edited by 78stan; Apr 26, 2011 at 12:14 PM.
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