Hard Wiring in a Tom Tom Go.

[Cupra R]

Has anyone succesfully hard wired there Tom Tom Go into there car and had the unit powered via the car's electrics?

If so, could you advise me on the best method to do the job??? I would like to get the Tom Tom Cradle for the new Leon, then have the car's electrics power the unit, rather than having trailing wires.

 

[Adibutti]

I havn't done this on my leon yet but I've done it on both a golf and a passat.

I just took the switched live ( ignition ) and earth from the back of the stereo fed it under the steering column and up the side of the door frame ( near fuse box ) onto the dashboard.

Switched live means it will only work when ignition is on, but could wire it from permanent live from stereo so it doesn't turn off. Choice is yours really.

Also depending on your cradle connections, I believe that some have a light input, so you can wire up an input from your lights so when you turns your lights on the display turns to night view.

 

[helms]

doesnt the tom tom Go have the USB connection on it?
If this is the one i am thinking of i would be interested in doing this too.
Mine is in an ibiza cupra though.

Any help / pics appreciated lads.

 

[Cupra R]

I havn't done this on my leon yet but I've done it on both a golf and a passat.

I just took the switched live ( ignition ) and earth from the back of the stereo fed it under the steering column and up the side of the door frame ( near fuse box ) onto the dashboard.

Switched live means it will only work when ignition is on, but could wire it from permanent live from stereo so it doesn't turn off. Choice is yours really.

Also depending on your cradle connections, I believe that some have a light input, so you can wire up an input from your lights so when you turns your lights on the display turns to night view.

Hi mate, so how have you altered the voltage to 5V for the Tom Tom unit?

Regards

 

[Adibutti]

To be honest I didn't read the discussion as carefully as I should.

I wired in a pda to the cars electrics. It needed a 5.5mm 2.5mm jack plug that connected into the holster. The holster then gave the pda the usb connection at the necessary 5v.

So no real difference apart from it being a pda instead of the TomTom Go

So now the technical part.

The car charge changes the voltage from the cars 12v to 5v wanted by the tomtom unit. This is the same as the holster does for my pda.

All you need is an inline fuse and a zener diode.



12v ----- 2A inline Fuse ------ Zener Diode ------ 5v ------- plug for tomtom.

Take your car charger into a maplins and get a dc power plug that is the same size. Looking on ebay see the tomtom go car charger is not a usb connection but a dc power plug.

http://www.maplin.co.uk/Search.aspx?criteria=L47AY&DOY=5m8

Mine was a 5.5mm / 2.5mm but I think the tomtom go is smaller. 5.5mm is the outisde diameter of the plug, 2.5mm is the internal diameter of the plug so you can probably measure it at home.

You then need an inline fuse, available most places

And finally a 5v zener diode.

http://www.maplin.co.uk/module.aspx?ModuleNo=19090&doy=5m8

A few descriptions of what is does are here.

http://www.allaboutcircuits.com/vol_6/chpt_5/7.html
http://en.wikipedia.org/wiki/Zener_diode

Hopefully this is of some help.

Ps done it on the Leon now, did the parrot ck3200 at the same time.

 

[Cupra R]

To be honest I didn't read the discussion as carefully as I should.

I wired in a pda to the cars electrics. It needed a 5.5mm 2.5mm jack plug that connected into the holster. The holster then gave the pda the usb connection at the necessary 5v.

So no real difference apart from it being a pda instead of the TomTom Go

So now the technical part.

The car charge changes the voltage from the cars 12v to 5v wanted by the tomtom unit. This is the same as the holster does for my pda.

All you need is an inline fuse and a zener diode.



12v ----- 2A inline Fuse ------ Zener Diode ------ 5v ------- plug for tomtom.

Take your car charger into a maplins and get a dc power plug that is the same size. Looking on ebay see the tomtom go car charger is not a usb connection but a dc power plug.

http://www.maplin.co.uk/Search.aspx?criteria=L47AY&DOY=5m8

Mine was a 5.5mm / 2.5mm but I think the tomtom go is smaller. 5.5mm is the outisde diameter of the plug, 2.5mm is the internal diameter of the plug so you can probably measure it at home.

You then need an inline fuse, available most places

And finally a 5v zener diode.

http://www.maplin.co.uk/module.aspx?ModuleNo=19090&doy=5m8

A few descriptions of what is does are here.

http://www.allaboutcircuits.com/vol_6/chpt_5/7.html
http://en.wikipedia.org/wiki/Zener_diode

Hopefully this is of some help.

Ps done it on the Leon now, did the parrot ck3200 at the same time.

Thanks for taking the time to put this together mate, I'm currently waiting on a TomTom Dash Mount from my Seat dealer then fit this into the car permanently, rather than using the suction mount.