Yeah, what Rob said: Their turnaround time is really fast. And they can make sure to do it right, without losing your existing music by accident or anything. If you're at all uncomfortable with the procedure dmoore posted, then definitely don't try it yourself.
As far as depth goes:
The Empeg is deeper than most car stereos, so you definitely want to check the specs from the web site and do some measuring. The biggest issue for me was that the cabling bundles coming out the back of the sleeve were bulkier than most car stereos. In order to make mine fit into my GTI, I had to do two separate things:
1) There was an inner support bracket rivited to the interior of the dashboard. This bracket was intended to hold up the back side of the factory car stereo. I'd had three other aftermarket stereos in the car, and they all fit this bracket, but the Empeg did not. So I had to drill out the rivets and remove it completely.
2) Even after removing the bracket, the extra cabling was still an issue. So I carefully disassembled the connector on the back of the docking sleeve and de-soldered the connections I wasn't using: In this case, the aux-in and the in-car serial connector. If you choose to do anything like this, you have to be extremely careful because some of those connections are fragile. The radio antenna, for example, was very fragile, and I had to re-solder it after breaking it. When re-assembling the connector, I also changed the direction that the wiring bundle came out of the sleeve (moved them from the right side to the left side). After doing this, the unit fit perfectly into my dash and looked pretty good.
Now, the wiring system in the back of the Mark 2 will be completely different, incorporating a separate box for the tuner module as well as an ISO connector for the other stuff. So you'll be in a different situation. But just keep in mind as you're doing your measurements that you need to allow extra slack space behind the unit for those things.
Tony FabrisEmpeg #144