I have the single disc player in my H3. Will the 6 disc changer fit/replace what I have now? Are the two radios the same size?

I have the single disc player in my H3. Will the 6 disc changer fit/replace what I have now? Are the two radios the same size?

Same size, same connectors. However, dealer will have to program the VIN into the radio; or the radio will lock immediately upon activating.

so I can install then take to dealer as long as I don't turn on radio?

You can turn on the radio, the dealer will program the radio with the VIN, and once programmed with the VIN, it will match the signal from the BCM, and then turn on.
It just electronically locks since the VIN from the BCM does not match the VIN inside the radio...part of the radio anti-theft feature.

So you can turn it on but it wont play anything until programmed?
Thanks in advance!!!