I went to car electronics in nottingham at dinner who quoted me £135 for fitting the head unit and front & rear speakers. So I think I'll bite the bullet and do it myself.

I am looking for a nice head unit (my personal preference is pioneer, but im open to suggestions) for around £100, plus two sets of speakers probably the infinitys and all the fitting kit (ideally would like to buy adapters rather than making them to simplify the job). Would also want to sound insulate the door panels if its not to much hassle. The head unit doesnt need all the bells and whistles as I will probably buy an fm compatible / blue tooth satnav mp3 and handsfree combo soon.

Does anyone know if I can source all of this competitively from one or two online suppliers (would rather not have to order and wait for stuff from 5 or six suppliers.)

If anyone wants to fit all this for me in exchange for a PC build ( which I can confidently do, I'll be happy to do a deal ;) )

Oh, its for a 06 / 07 model.

I have decided on the pioneer 4800 as I am a fan of previous pioneer head units and it also looks like it will aesthetically match the dashboard well.

Does the Autoleads SAK-2820 allow only 13cm speakers is it changeable to larger 16.5cm? Also will aftermarket tweeters usually fit in ok or are they best avoided.