Listen, I don't want to be a dick or anything, but unless you really need the money, I don't think that you are trying hard enough...

these two statements seem to prove that.

In addition to offering what came with the original unit, I have a new tuner which I never installed or used

We have a couple of decent radio stations here and I like to hear new music without having to invest and expand my personal collection

but whatever, I don't care.