I love my 540 but really rue the lack of data logging, top spead, average speed, acceleration etc etc is there an add on i can download for this? How would I do it?
If you decide this is of interest to you, be sure you download both the program and the little "hook" program that goes with it for your firmware level. You'll be clicking on both the "(Download this version)" and "Program for TomTom v8.x or v9.x compliance". Read and follow the instructions carefully for both.
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