Thinking of getting a beater car to save wear and tear on the Patrol.

I'd like to get something around $5K. Son has a 2005 Commy wagon, it's not a bad rig. After something that will be reliable and cheap to fix, so thinking Ford or Holden. Don't want a granny car, looking for a bloke car. I really don't have much clue.

Doesn't need to be beautiful looking but like a heap of shite either.

Another thing, it must be able to easily swap out the radio if the radio is crap. I've looked this up on VE commodores and apparently it's a massive PITA.

Any suggestions??