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post #1 of 13 (permalink) Old 6th November 2005 Thread Starter
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I am considering buying a Navman or Tom Tom Sat Nav system for my new Laguna Sport Tourer (incidentally its in Tornado blue and looks great!). I read somewhere that the French for some reason fit windscreens which contain metal and interfere with the GPS system? Has anybody got a Navman or a TOM TOM which they put in a Laguna and have you experienced any problems befor I go and splash a bit of cash?
Thanks in anticipation
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post #2 of 13 (permalink) Old 6th November 2005
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There is usually a portion of the screen without heating elements. It's also possible to get a cheap re-radiating antenna and basically put the GPS signal anywhere you like. Alternatively, most (if not all) GPS devices accept the input from an internal antenna which can quite often be put under the bonnet. So, if you really want one, even if you have problems with the heated screen, you can get round it

Last edited by selwonk; 6th November 2005 at 07:37 PM.
post #3 of 13 (permalink) Old 6th November 2005
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There are three options with the GO
1) Buy a re-radiating antenna as Selwonk says. It adds several extra wires, and some will tell you it's not as good as the proper antenna, but it has the added bonus of working with any other GPS devices you might want to fit, and still lets you remove all evidence of having the GO installed
2) Buy the official antenna. This will cost you a bit more and adds a wire for the antenna, but it leaves you with a TomTom shoe that's effectively hard-wired into the car. That's great until the crooks spot it and put a window through, hoping that you've left the GO in the glove box. Even if you haven't, they'll probably make do with your CD collection. TomTom have been rather moronic in not programming any anti-theft measures (PIN code, remote deactivation etc.) so GO theft is a serious problem.
3) Mount the GO right next to the rear view mirror. This lets the antenna 'see' though the dotted part of the windscreen (the only bit that doesn't have the coating.) It's also the ideal place for the GO from the useability point of view, apart from the fact that it interferes with use of the sun visor.

A further option is to buy a Palm PDA with a bluetooth GPS receiver and run TomTom 5 navigation software on it. It's cheaper, and you can mount the PDA wherever you like and just stick the GPS receiver in the dotted area of the window. To be honest, if you don't want the whole of Europe on one device (as you get on the 700) then this might be a better bet for cars with coated windscreens.
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post #4 of 13 (permalink) Old 6th November 2005
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I have a Tom Tom 5 PDA in the car. (Lag II) It is the wired variety, and the sensor has been next to the tweeter on the drivers dash side, and now (because its a better signal) I have it mounted on the top of the Clock housing/tyre indicator in the middle of the dash.

If you like I can take a pic. Never had any real issue with the signal. Even put it out of sight under the clock thingy Not much room in there
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post #5 of 13 (permalink) Old 7th November 2005
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Hi. I use an ipaq pda with tomtom 5 and have a wired sat reciever. You will not get a signal through the windscreen on the laguna but the leads that come with the tomtom pack are long enough to run from the dash (were you mount the pda or the windcreen mount) to the rear boot window were you do get a signal as the glass here is not heat protective. I have used my system since 2003 on my old lagII and now my vel satis. The benefit of the pda over the go system is that it can be used for a whole host of other things too and the tomtom software is more adaptable.
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