Car kit for Nokia 3220

I'm looking for a car kit for the Nokia 3220. I've spotted the HF3 but it's £40!!! I've got a very similar unit for my antique 3210, which you can pick up for a fiver these days.

Does anyone know if there are cheaper car kits that are any good? I bought some cheap thing years ago and the loudspeaker was so quiet, it rendered it almost useless.

p.s. by car kit I mean loudspeaker/charger thingy NOT any kind of headset.

Cheers.