Parts-Shopping-Gps-Ant
Will O’Brien on Engadget has a how to on making an external antenna for a GPS – “If you crack open your GPS, you could extend the wire between the antenna and the internal antenna, but the loss from the extra wire would degrade the signal. But active antennas amplify the signal to get past the loss in the extra wiring; with a little bit of hacking, you can add an external active gps antenna to just about any GPS unit.”Link.

Related:
Other GPS hacks, mods and more – Link.