Q: Hello, I have 2004 volvo xc90 and my radio controls stopped working, I saw that you have used unit for sale and my question is does it need programming after I install it and is it difficult to replace one?
A: It works right after you connect it,It is not very difficult to replace one, I provide instructions on how to replace that unit. I have sold many of these and never heard that customers did software download after they installed it, I talked to friend of mine at the dealer who does the programming and he says that these work right away but in some cases it might need software download which is not a big deal. All the 04-06 radio/cd control units are the same with part number 30679179
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