Ok I do too many miles to have vibrating rubbish speakers....what would be recommend for a reasonable set up

I don't wanna spend a gazillion pounds but I dont want Wang chung tinny nonsense either?

Looking to replaced the ones near the parcel shelf first as one has blown :(

Have you replaced headunit with an after-market one yet. The original speakers are pretty decent for OE and you'll actually notice a marked improvement in sound quality by replacing the headunit.

Replacing the rear speakers, even the blown one, will not make much difference to the sound quality.

Yeah have an alpine single din hu

Yeah have an alpine single din hu

If you want good sound quality in your car:

Ditch the rear speakers, they destroy the sound quality for those sitting in the front.

Fit front component speakers into sound-deadened doors.

Morel, Rainbow, Focal, JL Audio, Audison, CDT or Hertz are all good brands worth considering.

Fit a 4 channel amp.

Fit a 12" sub.

Anything else is just messing around.