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DIY Car Stereo Antenna?

Want to know if anyone has turned their roof rack into am/fm radio antenna or knows how?
Not how to mount an antenna on a roof rack!!!
I have a Jeep Liberty (2005), w\ (self) custom made aluminum roof rack. And I have 35ft of flexible/braided grounding strap to make internal run from roof-rack through and internally down to jeep frame if/as needed.
**Concept Notes**
 Outside rectangle frame is 1-1/2" (O.D.). I will rubber-coat all straight tube section then apply appropriate wire on to rubber and re-coat with rubber coating. I was then looking to slide slightly over-sized (I.D.) carbon fiber tubing over that. Ground and antenna wire will run through inside of rack turn down stanchion where bolts to roof. Rubber grommet to further insulate & protect wires.

I want super reception AM & FM, little to no visible footprint,
1. What wire or such for antenna is best/appropriate?
2. Proper lay out antenna wire? ie., wrapped around primary insulated tubing or laid out length-wise.



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kjsrocks1 year ago

I would just run a wire around the roof rack.

most anything helps. For my radios i just hook up a 50ft cable spool and throw it out the window. it works ;D

nickynite63 (author)  kjsrocks1 year ago

Man o man did I needed that laugh.

I am now delving into null vector, isotropic quadratics, rubber ducky history/theory, omnidirectional reception in relation to monopole and dipole antennas, etc. Was getting way too serious of a load on my brain cell!

Thanks again.

Designing antenna is an art rather than a science sometimes. The best results can really only be attained at 1 frequency but than again almost anything works with car radios

sometimes its better just to keep things simple. sounds like you got some advanced thing going on there

rickharris1 year ago

You will need to insulate the rack from the body of the car.


Who knows it may just work.

nickynite63 (author)  rickharris1 year ago

Thanks Rick

Why go through so much trouble?
After breaking 2 antennas in the bush I simply added a thin wire going like a "L" along two sides of my windscreen.
Connected to an antenna cable and no problem with reception or bushes anymore.

nickynite63 (author)  Downunder35m1 year ago

Thanks Downunder35m,

5 hours of intense internet reading on everything from wave propagation, antenna theory, mono/di/fold-pole, math formulas extent. And with all that came back to pretty much what you just wrote. I do want to include the antenna option into the roof rack because, I've got...a plan. Its kind of a multipurpose idea.