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DIY (inexpensive) mount for TomTom One + hardwire to fuse box

Ferris

www.ferrisgti.com
Location
Canberra
Car(s)
2007 Golf GTI 3D TR
I thought I'd post some pics and info describing the way I created a mount and hardwired my Tomtom One satnav to the fusebox. It's pretty basic stuff really, and no doubt there are much more elegant ways to do this. Having said that, it all cost me next to nothing, and so far the mount has been very stable and the Tomtom charges and works perfectly. I figure it beats spending a lot of money on a proclip...

From memory, all I used/bought was:

- a cigarette lighter adaptor: female cigarette lighter socket on one end, two wires/alligator clips on the other end (from Jaycar)
- a 3 Amp fuse (small size)
- some black cable ties (various sizes)
- an old stubbie holder (black!)
- a small rubber ball, flattened on one side (not shown!)
- little plastic bracket thingys (x 2) - as shown in photo!
- some velcro
- some black electrical tape

The mount:

I took the Tomtom windscreen mount apart, and placed the small rubber ball into the hole where the windscreen mount normally connects (with the flat side of the rubber ball facing out). I cut up the plastic bracket thingys to make them smaller, and attached them to the Tomtom's mount using the screws provided. I then cut up the stubbie holder, and wrapped a piece around the GTI's console (I figured it would protect the plastic from getting scratched). I then threaded cable ties through the holes in the plastic bracket thingys and wrapped them around the stubbie-holder-protected console. The cable ties work really well, fastening the mount solidly to the console. I then took another piece of stubbie holder and wrapped it (horizontally?) under the mount to hide the main cable ties, although of course I used some more cable ties to fasten the additional bit of stubbie holder! But overall it looked much neater this way. Of course, as I went along I trimmed the plastic ties once I had fastened them. Now you might think it all looks a bit dodgy (especially in one of the photos), but everything is hidden nicely behind the Tomtom mount... that is unless you want to get down in the footwell with a torch :)

The hardwiring:

The female cigarette lighter attachment I bought from Jaycar had two wires attached ending in alligator clips. I removed the alligator clips and stripped some insulation from the wires. I then connected the earth wire to a screw (as shown), and I wound the power wire around the leg of a 3 Amp fuse and pushed it into an empty spot in the fusebox. You can see in one of the photos- it's the pink fuse in the top row. I had previously tested this empty fuse spot with a test light to make sure it was only powered when the ignition was turned on. Of course, make sure that you plug the fuse the right way around, otherwise you will end up powering the Tomtom bypassing the fuse entirely :)
Next I plugged the Tomtom's car charger into the female cigarette adapter I had just wired in. I ran the cable from the fusebox up behind the dash and behind the interior plastic trim until it emerged between the driver's seat and centre console. I fastened the cable in place at various points along the way using some electrical tape. Oh, and I decided to use some velcro to hold the cigarette lighter adaptor firmly in place in the fusebox, so that it wouldn't add yet another vibration/rattle to the GTI's dash :)

Changing the Tomtom's welcome screen:

I couldn't resist creating a custom VW welcome/splash screen for the Tomtom. It's really simple- just follow these directions.

I think the most expensive item was the female cigarette lighter adapter- I can't remember its exact price, but definitely < $20. Everything can be removed if necessary, and I haven't damaged the original Tomtom mount or power cable (or my GTI!) in the process. Mounting the Tomtom down low works well for me... it doesn't get in the way of anything, and I can still clearly see it when driving (for the most part I just follow the voice instructions). I think the mount is less obvious down low, which is better for security. And if I'm parked in a dodgy area I can easily throw something over the mount to cover it up :)

Hope this guide is helpful to other not-so-technical people like me :)
 

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CiaranGTI

Schwam, Doo, Doo and heif
did you happen to take any pics while you had the lower dash pulled apart? I am considering relocating my iPod connector from the glovebox to the compartment in front of the gearstick and would love some tips/advice on how to pull it all apart!
 

Ferris

www.ferrisgti.com
Location
Canberra
Car(s)
2007 Golf GTI 3D TR
Hi yousnooze. Yep, it works fine! It might take a bit longer to get an initial signal than if mounted on the windscreen, but apart from that I didn't notice any difference.
 

Ferris

www.ferrisgti.com
Location
Canberra
Car(s)
2007 Golf GTI 3D TR
did you happen to take any pics while you had the lower dash pulled apart? I am considering relocating my iPod connector from the glovebox to the compartment in front of the gearstick and would love some tips/advice on how to pull it all apart!

Hi Ciaran. I didn't actually have to pull my dash apart- I could reach up behind the dash from the driver's footwell, and I just feed the cable along like that. I continued to feed the cable behind the plastic trim running along the centre console- there is a bit of space between the plastic and the carpet. I'm guessing your iPod cable would be another story though- sounds much more difficult.
 

amrjon

Ready to race!
Location
Behind the wheel
Looks good - better than on the windscreen. Well done.
I had my PDA in a similar area and the GPS signal was fine.

Does it bump your left knee though? looks like it might?
 

Booba

Ready to race!
Location
Brisbane
Speaking of bumping my knee I have this habit of opening the storage below headlight switch arming my home with the remote and for some reason not closing it. Upon exit vehicle OOUCH!!!!!
 

Ferris

www.ferrisgti.com
Location
Canberra
Car(s)
2007 Golf GTI 3D TR
Looks good - better than on the windscreen. Well done.
I had my PDA in a similar area and the GPS signal was fine.

Does it bump your left knee though? looks like it might?

Another 1cm across and it would, for sure. But it's just out of the way, luckily!
 

Ferris

www.ferrisgti.com
Location
Canberra
Car(s)
2007 Golf GTI 3D TR
Speaking of bumping my knee I have this habit of opening the storage below headlight switch arming my home with the remote and for some reason not closing it. Upon exit vehicle OOUCH!!!!!

I do exactly the same thing! That little compartment has a sharp hatch on it eh? :)
 

zogger

Ready to race!
Location
Brisbane
I have one of the new Tomtom one with the easymount which has the holder that folds in on the device. I purchased a circular plastic plate which i positioned directly under the dash just above the area where the 12v output is (just forward of the gear stick) (in your pic it would be more left and back. This allows the device to be centralised and close to the 12v, also when not using the 12v you can still close the compartment. But when i remove the tomtom you cant see the plate so you wouldn't be the wiser if it was there or not. Plus it also allows the passenger to make changes on the tom tom with out interfering with my gear changes (manual)

Also the 3m adhesive pads do a good job holding the plate in place and support the tomtom's weight.

Only thing i need to do now is get a smaller 12v adapter with shorter cable or hardwire it to come out near near the location of install.

Security wise you defiantly cant see if through the tints and it still get a good signal equal to being on the windscreen (note i do have a sunroof)
 

GGERG15

I can't drive automatic
Could you give a little more detail about how you chased from the fuse panel to the center of the dash? Did you use a coat hanger? If you put your head under the drivers foot-well can you chase it that way?

Looking to do this with my phone charger.

Thanks!
 

Ferris

www.ferrisgti.com
Location
Canberra
Car(s)
2007 Golf GTI 3D TR
Could you give a little more detail about how you chased from the fuse panel to the center of the dash? Did you use a coat hanger? If you put your head under the drivers foot-well can you chase it that way?

Looking to do this with my phone charger.

Thanks!

Hi GGERG15,

It's been a little while now, so I don't remember the specifics. But I managed to chase the wire from the fuse through to the footwell without too many problems. I used a coathanger and a flashlight, and managed to do the job without removing any parts of the dash or car. I think I spent a lot of time laying down in the driver's side footwell in order to get the right angle to see what was going on!

Cheers,
Ferris
 
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