Okay, when I talk on my cb, I get major feedback via my speakers in my Jeep. The grounding is nowhere near the radio, and the radio fuse is not used. The coax does run near the AM/FM antenna. Would that matter?

possibly bleedout from the coax, move the coax away if you can

how is your antenna itself grounded?

i'm trying to remember what i screwed up on at one point and caused that exact thing

i want to say it was the antenna not having a good ground when i had it simply clamped to the plastic side rail

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03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632

You may be experiencing what is called "front end overload" make sure that the radio and antenna are both grounded. you may need to reroute the coax.

or turn that KW Amp. off LOL J/K

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2006 Renegade 4x4
Roof Light Bar,
Off-Road Package,
Rock Rails,
Tow Package, Factory Tow Hooks Front.
Rear Hitch Tow Hook,
750 Watt Inverter,
Cobra 25 WX CB Radio W/ a Cobra HG-M75 Power Mic
Cobra 100 Watt CB Magnet Mount Antenna - HG-A1000
Garmin nuvi 265T