The charging tip on my treo/tomtom car charger has gotten quite "messy". I want to keep the charger, one because it has tips for the gps (usb - which is fine) & a tip for the treo (charger port only, not full connector), and two because I have the wires routed under my car's console and panels for a neat installation. I was thinking of cutting the tip off of another charger & the messy tip, and splicing / reconnecting the new tip. Is this feasible? Is there anything I should look out for?