The TomTom Go Ranges in price from £280-£550 depending on model, see www.tomtom.com for details and stockists.

You need to use the supplied cigarrette lighter adaptor as it gives the correct controled voltage for the unit.

I picked up a switched live feed (violet & white) and an earth (Brown) off the radio wiring harness (I was fitting an icelink+ as well) to a four way cigarrette lighter accessory socket (only use for low power items) which I located in the glove box, I routed the TomTom power cable through to the glove box aswell as my camera detector power supply and I can plug my phone charger in there aswell.