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Picked up an OEM sat nav dash unit - retro fit a TomTom?

Picked up an OEM sat nav dash unit - retro fit a TomTom?

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Matt_C
Senior Member
291
15-07-2019, 08:58 AM
#1
Stumbled on a nav unit last night, and turned out the guy was gonna be in the same part of London this after that I was going to be in, so a deal was done!

It's the older, smaller screen (5inch?), which has a problem with the screen flickering. He assures me everything else works fine (ie, the motor, and the open/close and tilt buttons)

Soooo... The idea was to get the 7" version, rip the screen out and make a thin fascia to house a 6" TomTom satnav (with the plastic casing removed) to keep it as OEM looking as poss. I'm now thinking that since the screen is 5" widescreen in this, a 5" widescreen TomTom screen should work (again, with the plastic casing removed to make it flush and OEM looking). So I'm now on the lookout for a bargain TomTom Start 25 or XXL Classic to pull apart and see if I can get it how I want, which is as follows;

1) I want the TomTom to only power on when the nav unit opens, and power off when it closes

2) It to have a live power feed only when the nav unit is open and the TomTom on (ie, not have a permanent live, so no battery drain)

3) The nav unit to close when switching off the ignition, but ideally I don't want it to open when switching the ignition on. Reason for this is I often just jump in the car, fire it up, and head off to the shops, supermarket, to a mates, down the pub etc - all places I don't need a sat nav for. I'd rather get in, turn it over, then press the button to open the nav unit, the TomTom switches on, I go where I need to go, then when I get there and kill the ignition, it closes and turns the TomTom off

So I know what I want, but there's one problem - I haven't got a friggin clue about electronics and wiring!!!!! I wouldn't know where to start to mod a TomTom to do the above (the basic inspiration for what I want was taken from here - http://www.outlawjapclub.co.uk/forum/sho...hp?t=10754), or how to implement it - I don't even possess the skills to wire the Nav into my car (which doesn't have nav as standard, so would need patching in)

So I'm after a bit of help from some much more knowledgeable people on here! Big Grin
Matt_C
15-07-2019, 08:58 AM #1

Stumbled on a nav unit last night, and turned out the guy was gonna be in the same part of London this after that I was going to be in, so a deal was done!

It's the older, smaller screen (5inch?), which has a problem with the screen flickering. He assures me everything else works fine (ie, the motor, and the open/close and tilt buttons)

Soooo... The idea was to get the 7" version, rip the screen out and make a thin fascia to house a 6" TomTom satnav (with the plastic casing removed) to keep it as OEM looking as poss. I'm now thinking that since the screen is 5" widescreen in this, a 5" widescreen TomTom screen should work (again, with the plastic casing removed to make it flush and OEM looking). So I'm now on the lookout for a bargain TomTom Start 25 or XXL Classic to pull apart and see if I can get it how I want, which is as follows;

1) I want the TomTom to only power on when the nav unit opens, and power off when it closes

2) It to have a live power feed only when the nav unit is open and the TomTom on (ie, not have a permanent live, so no battery drain)

3) The nav unit to close when switching off the ignition, but ideally I don't want it to open when switching the ignition on. Reason for this is I often just jump in the car, fire it up, and head off to the shops, supermarket, to a mates, down the pub etc - all places I don't need a sat nav for. I'd rather get in, turn it over, then press the button to open the nav unit, the TomTom switches on, I go where I need to go, then when I get there and kill the ignition, it closes and turns the TomTom off

So I know what I want, but there's one problem - I haven't got a friggin clue about electronics and wiring!!!!! I wouldn't know where to start to mod a TomTom to do the above (the basic inspiration for what I want was taken from here - http://www.outlawjapclub.co.uk/forum/sho...hp?t=10754), or how to implement it - I don't even possess the skills to wire the Nav into my car (which doesn't have nav as standard, so would need patching in)

So I'm after a bit of help from some much more knowledgeable people on here! Big Grin

Matt_C
Senior Member
291
15-07-2019, 10:58 AM
#2
[Image: ejyko7.jpg]
Matt_C
15-07-2019, 10:58 AM #2

[Image: ejyko7.jpg]

mattlaw
Senior Member
572
15-07-2019, 11:17 AM
#3
Wow glad my build inspired someone lol
mattlaw
15-07-2019, 11:17 AM #3

Wow glad my build inspired someone lol

Sparkystav
Administrator
14,683
15-07-2019, 11:57 AM
#4
Everyone's at the ace cafe today hence the forum being quiet.

The info you want is actually already on the forum. P lindbom has posted it before. The satnav will work as you describe if you follow his instructions.

OutlawJapClub Admin Team
Sparkystav
15-07-2019, 11:57 AM #4

Everyone's at the ace cafe today hence the forum being quiet.

The info you want is actually already on the forum. P lindbom has posted it before. The satnav will work as you describe if you follow his instructions.


OutlawJapClub Admin Team

Matt_C
Senior Member
291
15-07-2019, 01:51 PM
#5
I read that one I think, but he used a different satnav to what I want to use (I've not seen anyone do it with a TomTom before)

Also, you're overestimating my electrical skills - I have to check a diagram before I wire a house plug! It's a shame I'm not closer to Morcombe, or Manchester, because I've seen your skills with wiring these puppies up!
Matt_C
15-07-2019, 01:51 PM #5

I read that one I think, but he used a different satnav to what I want to use (I've not seen anyone do it with a TomTom before)

Also, you're overestimating my electrical skills - I have to check a diagram before I wire a house plug! It's a shame I'm not closer to Morcombe, or Manchester, because I've seen your skills with wiring these puppies up!

Sparkystav
Administrator
14,683
15-07-2019, 02:09 PM
#6
The reason we used the Sony satnavs is that they already have the turn on with power feature built in. im not sure the tomtom has that feature.

You option is to solder 2 wires to the push button and rig up a relay if it doesn't have the power on feature

OutlawJapClub Admin Team
Sparkystav
15-07-2019, 02:09 PM #6

The reason we used the Sony satnavs is that they already have the turn on with power feature built in. im not sure the tomtom has that feature.

You option is to solder 2 wires to the push button and rig up a relay if it doesn't have the power on feature


OutlawJapClub Admin Team

S
Banned
1,153
15-07-2019, 02:24 PM
#7
Matt_C I read that one I think, but he used a different satnav to what I want to use (I've not seen anyone do it with a TomTom before)

Also, you're overestimating my electrical skills - I have to check a diagram before I wire a house plug! It's a shame I'm not closer to Morcombe, or Manchester, because I've seen your skills with wiring these puppies up!

So really when you asked how to do it what you really wanted was someone to do it for you?
S
15-07-2019, 02:24 PM #7

Matt_C I read that one I think, but he used a different satnav to what I want to use (I've not seen anyone do it with a TomTom before)

Also, you're overestimating my electrical skills - I have to check a diagram before I wire a house plug! It's a shame I'm not closer to Morcombe, or Manchester, because I've seen your skills with wiring these puppies up!

So really when you asked how to do it what you really wanted was someone to do it for you?

Matt_C
Senior Member
291
15-07-2019, 02:27 PM
#8
I've had three TomTom standalone units, along with the application built into my work PDA (which is pretty much why I want to put a TomTom in this build - I'm just used to the way they work, and quite happy with them) but none of them have had turn with with power like the Sony's. Two have had a button on the top and the latest has the button on the back.

I was hoping there would be a solution to that power on feature - I was thinking something similar to what you just said (look at me, sound like I know what I'm talking about! Big Grin ), but no idea how to implement it to trigger on and off with open and close and/or with power supply switching on and off.

Also, from what I've seen, the one's that have been done either seem to have the open/close button, or auto open and close on ignition on/off - but not a combination of the two. To make matters more complex, what I want is it to do nothing with ignition is turned on, so I have to manually open it (at which point it will switch on), but I'd like it to automatically close (and switch off) on killing the ignition (AND have the option to press the close button manually and have it power off too) - don't want much do I??!?!
Matt_C
15-07-2019, 02:27 PM #8

I've had three TomTom standalone units, along with the application built into my work PDA (which is pretty much why I want to put a TomTom in this build - I'm just used to the way they work, and quite happy with them) but none of them have had turn with with power like the Sony's. Two have had a button on the top and the latest has the button on the back.

I was hoping there would be a solution to that power on feature - I was thinking something similar to what you just said (look at me, sound like I know what I'm talking about! Big Grin ), but no idea how to implement it to trigger on and off with open and close and/or with power supply switching on and off.

Also, from what I've seen, the one's that have been done either seem to have the open/close button, or auto open and close on ignition on/off - but not a combination of the two. To make matters more complex, what I want is it to do nothing with ignition is turned on, so I have to manually open it (at which point it will switch on), but I'd like it to automatically close (and switch off) on killing the ignition (AND have the option to press the close button manually and have it power off too) - don't want much do I??!?!

Matt_C
Senior Member
291
15-07-2019, 02:29 PM
#9
Stix44 So really when you asked how to do it what you really wanted was someone to do it for you?

To be completely frank - pretty much, yes!

Although to be fair, I was mainly asking to see if it would be possible, and if it is, I'd really like to do it, but I know my limitations, and I would need physical help to achieve it. And by that, the reality is I'd more than likely need to take it someone that knows what they are doing, supply them with tea/biscuits/beer/money/etc to get it done
Matt_C
15-07-2019, 02:29 PM #9

Stix44 So really when you asked how to do it what you really wanted was someone to do it for you?

To be completely frank - pretty much, yes!

Although to be fair, I was mainly asking to see if it would be possible, and if it is, I'd really like to do it, but I know my limitations, and I would need physical help to achieve it. And by that, the reality is I'd more than likely need to take it someone that knows what they are doing, supply them with tea/biscuits/beer/money/etc to get it done

S
Banned
1,153
15-07-2019, 02:34 PM
#10
Why are you so insistent on a TomTom?

You say you know your limitations so why are you trying to do something out of the ordinary/not tried and tested?

Why not use a Sony unit where there is at least one, if not more, comprehensive guides to help you.
S
15-07-2019, 02:34 PM #10

Why are you so insistent on a TomTom?

You say you know your limitations so why are you trying to do something out of the ordinary/not tried and tested?

Why not use a Sony unit where there is at least one, if not more, comprehensive guides to help you.

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