According to the Owners Manual for the DPX303MBT, only the DPX523BT comes with a remote included. This manual covers the DPX303BT, DPX503BT, DPX523BT, DPX540BT, DPX593BT, and DPX793BH. The only difference between the 503 and 523 is the remote included in the box and for all others it is optional, including the DPX303MBT. If you'd like to purchase the remote, it is model RC-406 and can be found on numerous websites although not presently carried by Best Buy.
The good news is every setting is available through the front panel controls, no additional purchase necessary. The owner's manual can be found on kenwood's website at this url: http://manual.kenwood.com/files/B5A-2109-00.pdf
Hope this helps!
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