keep the p80. i have using the alpine ida-x200 with the imprint, p80rs2, dex-p9 + deq-p9 and now dex-p99rs. the p80 is the best compare to the alpine ida. if u ensist using the usb drive just buy the usb adapter for the p80rs it maybe cost u about rm 200 for the used ones. for sq u will mist of using the cd as your source.