Let me make those of you interested in this matter a new proposal. Consider the whole thing a potential *business model*: Try and find independent, technically qualified people who could work out the the carkit problem, because this is where the principle problem lies.
Those carkits existing (and known to me) consist of 2 parts: a black box, and a holder for the phone. Both are interconnected by a system cable. The black box is connected to the car battery, a microphone and a speaker (or the radio's speakers), and the roof antenna.
Audio 2000 by Funkwerk Dabendorf (FWD) - see
offers phone-specific holders, because of the necessary contacts. However, their holder covers the phone's mini-USB, so you can't wire-connect the netbook. Their mic is way too weak, the other party can hear you with problems only. Then again, you may be glad that they can hear you at all (and you can hear them), because the holder's audio plug is mounted insufficiently: It has a tendency to losen in the course of some weeks, and once this situation is there nobody hears anything anymore. .)
Alternatively, there is Bury's System 8, see
They seem to offer a general-purpose holder, thus without contacts. According to what I hear, you are supposed to plug a short lose power wire into your phone. This would be basically fine, but it seems to be of the mini-USB type, so it would occupy the slot needed for the netbook. Then the audio part is to be fed via bluetooth. Personally I don't like bluetooth, because it just causes too many problems. These problems will probably worsen when you also try to connect your netbook this way, even if your phone can handle 2 such simultaneous connections.
I would prefer a solution with general-purpose holders plus short lose wires for power, audio and netbook. As connectors, use standard types, plus offer the necessary adapters.
By the way, my preferred antenna is a swedish Smarteq (formerly Allgon), see their catalogue at
Looks- (see the last photo in my video, via thread opener) and handling-wise I prefer the 1158.22 (page 4), although it reaches up to 1990 Mhz only.
Finally a word about the netbook. The only problem that I remember there was to get it connected via the Kensington 120 W power supply to the car battery - the Kensington doesn't offer the right tip for every netbook. So a savvy technical interventon was necessary there too. A small optical mouse is easy to obtain, as is a small keyboard. As a monitor, I now have (in contrast to the video photos) a Xenarc 805YV, see
This is a superb thing - light-weight, stable and crystal-clear image. But they also offer a range of other models, best will be to check out for yourselves.
Once you've come this far, you can start your business and try to reach the quality-minded customers. And when your sales warrant it, you can start to make model-specific holders as we had them in Europe in the 2G era. They used to offer a host of convenient features adapted to the various models which a general-purpose holder just cannot offer. I wouldn't be suprised if european industry then came to copy 'the american model' again... .)
Finally, if you are really successful, then you can approach Nokia, Ericsson & co and demand that they again equip their phones with an automatically switched external antenna contact. From then on, putting the phone into the cradle means also that all the phone's antenna power is led to the roof antenna through a galvanic contact, that the phone's antenna remains inactive. This means you get the entire raditation out of the car - in the interest of your range, link quality, and protection from harmful cellphone radiation (yes, 2 W is harmful if exposed to it from a close distance for hours on end).
Good luck to you, hope to hear good industry news from the other side of the Atlantic soon - the sooner the better. .)