Defender HT - audio and phone

[Ciaran]

Hi

My brother in law has an 08 HT defender and I'm tasked with getting him a few bits for Christmas. I'm after an upgrade to the current speakers - 13cm and I'm also after a new radio that will enable him to run his phone through it.

I'd like to spend up to £200 on both if possible. I know zero about defenders or audio so any advise would be greatly appreciated.

Thanks!