Best Offroad Aerial and Radio

A question for you truckies/off roaders amongst us.
I have a 40 series Landcruiser.
I need a better aerial and if needed a new radio.
For example the one I have looses reception from about Waiouru to Bulls.
Not fussed on whether it has CD player etc I mostly just listen to radio.
Wife uses bluetooth through the one I have.
But what, who ,where do I get a decent aerial that can pick up stations in the wops.
Do not want giant thing the old truck is pretty gutless as it is without any more load and wind resistance.

find some thing OLD...preferably with a manual hand turned tuner.....and aerial wont matter.... te coathanger works a treat.
regret not hanging on to what we had years ago.

Me and mates all used to run sony x plode from super cheap were about $ 90 with cd and front input , all worked any were in ni up to gizzy and great on waiarapa east coast prob same cost now without cd but usb and bt .

Thanks for that gives me somewhere to start.

@erniec I use one of these on my truck - seems OK. I have it mounted on one of the roof bars and it's pretty robust.
https://www.wavetech.co.nz/Pacific-Aerials-P9735/

Will look at them.
The one that has been on it for years just has a wire type one.
Broke on down south got some brazing rod from the local garage unit I could get a replacement.
Cant rush these things I have only had in 20+ years.