Thats what i've said to him, in my experience the one's i've used have been rubbish.
However, he's got 2 cars that he uses regularly and he also uses my mums car sometimes and wants to be able to listen to it in all 3 without replacing all the head units.
Cars are:
- 54 plate Ford Focus Estate
- 51 plate Ford Ka (my mum's)
- 1981 Morris Minor (fully restored, and tuned up a bit

)
Is there anything that would work in both the Fords that is interchangeble?