Power Antenna pops up w/Aftermarket Headunit
#1
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Power Antenna pops up w/Aftermarket Headunit
When I bought this car I replaced the power antenna with a brand new GM unit. Yes, I spent a good dollar for the part, but I wanted an original OEM antenna. And it works perfectly, all the way up and down, no noise or issues while using the stock head unit.
Last year I bit the bullet and installed a double din JVC headunit w/External sub. Wired up everything carefully and correctly. The only issue I have is the antenna up about an inch sometimes after the car if shut off. I can manually push it back down.
Although I never use AM/FM, if I do, the antenna will go all the way up and all the way down as expected.
When I use anything else (XM, Bluetooth, Pandora) is when I find the antenna popped up when I've shut the car off. See attached pic.
For some reason, I assume, a brief signal gets sent to the antenna.
Any thoughts on why this happens?
Last year I bit the bullet and installed a double din JVC headunit w/External sub. Wired up everything carefully and correctly. The only issue I have is the antenna up about an inch sometimes after the car if shut off. I can manually push it back down.
Although I never use AM/FM, if I do, the antenna will go all the way up and all the way down as expected.
When I use anything else (XM, Bluetooth, Pandora) is when I find the antenna popped up when I've shut the car off. See attached pic.
For some reason, I assume, a brief signal gets sent to the antenna.
Any thoughts on why this happens?
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You could wire the blue wire from the jvc through a relay first, before it powers the antenna wire. If there's a small voltage resting on the blue wire when you're not listening to am/fm, this would allow the antenna control wire to truly rest at 0 volts.
Might work, might not. But at least give it a shot. If it doesn't work, then a manual switch as stated above may be a good option. The relay would basically do the same thing, just without you having to flip a switch every time.
Best of luck, post up if you have any other questions.
Might work, might not. But at least give it a shot. If it doesn't work, then a manual switch as stated above may be a good option. The relay would basically do the same thing, just without you having to flip a switch every time.
Best of luck, post up if you have any other questions.
#6
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Thread Starter
You could wire the blue wire from the jvc through a relay first, before it powers the antenna wire. If there's a small voltage resting on the blue wire when you're not listening to am/fm, this would allow the antenna control wire to truly rest at 0 volts.
Might work, might not. But at least give it a shot. If it doesn't work, then a manual switch as stated above may be a good option. The relay would basically do the same thing, just without you having to flip a switch every time.
Best of luck, post up if you have any other questions.
Might work, might not. But at least give it a shot. If it doesn't work, then a manual switch as stated above may be a good option. The relay would basically do the same thing, just without you having to flip a switch every time.
Best of luck, post up if you have any other questions.
Any thought on what kind of relay for this?
Also, I re-read the instruction page for wiring, and i see there is a box of some sort JVC pictures with the power and switched power wires running through, see pic bottom right corner. I dont know what that box is supposed to be.
Last edited by michaelhawk; 09-11-2017 at 09:46 PM.
#7
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That's just a generic representation of the car's electrical system. The fuse box depicted close to the battery represents the junction box under the hood and the other two fuses represent the fuse panel at the end of the dash. They don't represent anything specific to the JVC setup.
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#8
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That's just a generic representation of the car's electrical system. The fuse box depicted close to the battery represents the junction box under the hood and the other two fuses represent the fuse panel at the end of the dash. They don't represent anything specific to the JVC setup.
So I think I'd be looking for a 12v Relay with a delay. I'll start playing around with this later in the week.
Last edited by michaelhawk; 09-14-2017 at 08:33 PM.
#9
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This is what I came up with. Reply with a delay, and OEM male and OEM female end connector to make this thing plug and plus without cutting my harness.
Seems to work well! During my testing the antenna never went up, not even a little, when NOT using AM/FM.
When selecting AM or FM, a 6 second delay and the antenna climbed all the way up. Upon selecting something else or shutting the car off, the antenna dropped all the way down.
Time will tell tomorrow with normal driving and all to verify the antenna NOT going up at all, when using Bluetooth or Pandora APP.
Thanks for everyones ideas.
Seems to work well! During my testing the antenna never went up, not even a little, when NOT using AM/FM.
When selecting AM or FM, a 6 second delay and the antenna climbed all the way up. Upon selecting something else or shutting the car off, the antenna dropped all the way down.
Time will tell tomorrow with normal driving and all to verify the antenna NOT going up at all, when using Bluetooth or Pandora APP.
Thanks for everyones ideas.