UHF Wiring...is this correct?

will, that will work fine, but you don't NEED 4mm wire, but if you've got it, it certainly won't hurt!!

One other, take care with your aerial plugs, and try to avoid running the cable near power cables (I know that is hard, but apparently it makes a big difference) I've run mine apart where possible but in some places you just can't

Will,

I fitted a GME TX4200 to my mates 100 series this afternoon and the only suggestion that I would offer you is to also wire the negative cable direct to the negative terminal of your battery rather than to an earth point. This gives you the advantage of using the radio without the keys in the ignition and turned to acc or on. The amount of power used by a cb is minimal and is pretty unlikely to lead you to a flat battery situation unless you were to leave it on for a few days without starting the motor of course. Run your antennae coax in through the same hole in the grommet and chuck a little silicon around the hole once you've set every thing in position. A couple of cable ties to prevent rubbing (as I've learned by mistake before now) and Bob's your uncle.

Enjoy

Will.
You are correct to connect the negative to the body, preferably close to the radio.
Try to run the positive close to the inner gaurd as far as possible from the alternator to reduce the interferance. If you want a top job run the coax through the inner gaurd above a wheel and out under the front panel so there is metal between the coax and the motor, this will reduce interferance on weak signals. Eric.

And put the antenna as high as you can.... on the gutter preferably......bull bars are ok but a little low..._____________________________________________

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And unless you are able to mount the antenna on the middle of the roof of the vehicle - consider a ground plane independant antenna. Especially if you are going for a bull bar mounted antenna.....

1 amp fuse might be a bit on the light side. I'd use a 2 or 2.5 amp, you'll probably find the radio pulling over 1 amp on transmit.

I have an accessory plug on a second wire for use in Car2 and it works fine. Wiring in Car1 is direct to battery and earth to body. Check the power draw on transmit - that's when the 1 amp fuse may be insufficient. Sitting idle/receiving it will be fine but not transmitting. Have a look at your manual. Mine draws 1.4amps - it's a GME TX 4400. This also means a 10 amp wire is overkill and harder to push through a tight gap! The manual also gives wiring details for installing to ignition switch accessories circuit which also suggests it would work fine there too. Good luck! Hello to my nephew who also offered advice.

Thanks guys, damn excellent. Fitted all well and good today. Tested and A ok.

Beauty,
Will.