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I got this link from another board member from a few days ago. The all-in-one really is just that. It doesn't matter what's on the paint, whether it's new from the dealer (and there-fore well waxed(in theory!)) or if it's been car-washed for a year. If you have an older car with more severe build up of "hard" debris on the surface, Klasse will remove it but in that situation I would likely buy a small clay bar (or use one at work !!) for ease.
jk26 - click my name for my profile and email me with that question!
mschukar - My 330i was a May production and therefore had H.K. standard. I would not have ordered it if it were optional. I haven't changed any speakers. I've had all the different high-end speaker combinations available and, for my ears, the factory speakers perform quite well provided you don't ask them to reproduce lower frequencies at any medium to high volume. An after market sub-woofer doesn't have to take up half the trunk and totally transforms the whole listening experience. I scored an Xtant mono amp on eBay for $100 and I purchased my "didn't really need a 10 inch" Bazooka tube for $186. About $35 total in shipping. I'm friends with one of the owners at a local home theater shop who used do installs for 10 years. He put the amp in for free, but it only took an hour so I'd guess any local stereo place would do the same for around $50. Let's say you're not as cheap as me. I'm fairly sure the local Circuit City could supply and fit similar equipment for well under $400 all-in. That will certainly offer performance well in excess of the $675 H.K. option. If you're leasing and/or you don't mind paying a little more, factory H.K. AND the additional sub would definatley be best. Beyond that, you'd need to be spending around $2,500 - $3,500 at a decent stereo shop and entirely replace the factory audio equipment. As for installation, it's a breeze. The amp has 4 wires going in to it and what they need to be connected to is all in the trunk !! The factory amp, on both standard and H.K. cars is behind the panel on the left of the trunk. You can easily pick up the signals from the wires going into the amp for the remote turn-on and the audio signal. I'd have to look to see which ones they are. We only need one audio line as we're running mono. Then it's just pos. and ground! Any part of the cars metal body is ground, so just a short cable to either an existing nut/bolt combo or, as I did, screwed to the parcel shelf's underside. The battery is already in the trunk so it's not going to be too far from the amp. Then it's just the one line of speaker wire to the sub. Pictures to follow...
This is where I purchased my tube from. I got the RS104 (10 inch, 4 ohm). They have a link to Bazooka's home page at the top.
Not the most comfortable I've felt buying something on eBay! No pics, thin description and came to me in an USPS Priority Mail box with some screwed up newspaper for protection! But hey - it works !! I highly recommend trying to buy the same item, this model's frequently for sale there.
Some more info on Klasse.
I wanted to edit the above post, but Edmunds edit feature will not permit a "word" greater than 17 characters in length. Odd.The information on how to use to product is good.
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