Looking for a used NAVIII for sale. I recently purchased a great 05 LT with a NAV II and want to do a simple & cheap upgrade to a NAVIII. I understand these use the same mount and connector but the III is still able to get maps and software updates unlike my II. So anyone with a III for sale let me know. Thanks! Posted this before on the GPS forum but no replies. Hoping a wider viewing on the main site!