
When my car was broken into and my radio nicked the police weren't exactly stunning - I rang them and they said someone would come and see me within 24 hours; not a soul. As it turned out, two policemen did come round at half one in the morning - about half hour after the call - but not because of it, they'd been trying to catch the thief after several other break-ins and had seen my car.
They arrested someone and he was let go on lack of evidence.
I would get yourselves down to a breaker's yard - my new window cost £20, no need for insurance. Make sure you check the tint on your windows though - I now have 5 lilac tinted and one green tinted window! My new stereo I got from my brother, but decent stereos aren't that expensive these days.