Do you have details on the kit that:
a) the independant wants to install and
b) what the dealer is going to install?
I appreciate that £900 is more than you were originally looking to spend.
If they're installing a £100 pair of components, a £200 amplifier and a £100 sub/box combo it's dreadful value for money because it represents max 3 hours work.
If, however, you're talking about Morel/Rainbow/top end DLS components a very high end Genesis amp and a top notch JL sub, it's starting to sound better value for money....
Which leads me onto the VW option; at a little over half as much, you're obviously going to be tempted - but you need to consider what exactly it is they're going to do; crack open the doors and replace standard speakers with upgraded stuff? That's it, no amp, no sub, right?
So, depending on what it is they're putting in there, I'd feel safe in betting a lot of money you aren't going to get the performance increase that you're looking for. If you are, then you're easily satisifed, and could do the same job yourself with off-the shelf stuff and have change from £200.
Try to find out exactly what each place was offering (brands and models) and I'll comment further.
Being passionate about music and liking decent reproduction doesn't mean you have to wear a baseball cap backwards - likewise, having a sub in your boot (pretty much a necessity if you want deep lows and to listen to how the music was intended to be listened to) doesn't mean you're a boy racing chav. Don't let that put you off going with a better, aftermarket set up.
