I may not be the sharpest tool in the shed but trying to find out how to simply pre-set the radio stations on my radio is like pulling teeth. I am the proud owner of a 97 XJ6L minus the radio/cassette with CD button manual. My question is two fold. 1...How in God's name do I accomplish this? 2...Who is the OEM (Clarion, Alpine, Kenwood or Manyard P. Snodgrass)? Any help Ya'll can throw my way will get me to jammin.