I currently have a Clarion DB345MP that is working nicely but it does not have an auxiliary input. It would be much more convenient for me to have one that did, or one that accepted SD cards. I do not need anything fancy and I would like one that would just plug right in using the same plug as the DB345MP. Discontinued models would be fine, I don't mind tracking down a used one. The two important things are the aux input or SD and the same connector plug which probably narrows it down to Clarion models. Thanks.