Hi,
I recently bought myself a 2005 everest tcu off ebay, on the idea that I'd get it first and then worry about how I'm going to install it! I have some thoughts on how I'm going to do the install and I'd like to mention them here and maybe people could advise me on whether I'm on the right track or not.

I've looked in my boot and there is no db25 connector or any of the different connectors that people have talked about using to adapt into a 54pin plug for their tcu.
I'm thinking that most likely I will need to:
-install the microphone up at the front and then run those wires all the way back to the trunk.
-install the bluetooth antenna somewhere and run that back to the trunk.
-then the rest of the important connections I need (ibus, power, ignition, ground, etc) I'm hoping will already be back in the trunk and I could splice from these into my 54pin adapter.

Here's a picture of what's in my trunk already. There's three units in there: radio, tv, and cd changer. Unless the radio is also the amplifier - I'm a bit stumped as to where the amplifier is?



Also at the front of the car there is a mobile phone cradle for a Nokia phone. I was hoping it might have helped simplify my tcu install, but I think it's quite a simple setup. A friend had a phone that fitted into the cradle. We could call from the phone itself and the sound did come out over the speakers. But I couldn't find anyway to control the phone from the steering wheel or head unit, and no phone option turned up on the head unit.


I haven't yet been able to get directly behind the console to see what's going on with the cradle but looking under the glovebox I can trace two wires that I'm sure come from the cradle. One is definitely an antenna cable that goes up to a mobile phone antenna stuck on the rear glass. The other is a single greenish wire that ends right at the radio module in the trunk (you can the wire in the top picture). It's spliced onto a wire that has the colour coding for 'Radio Mute'. I'm not sure how the cradle connects to the car speakers.

Anyway, that's where I'm at at the moment. As I said I'm hoping most, if not all, of the wires I need are ones that are already going into the radio unit. If anyone knows of pitfalls in my plan or has suggestions I'd be very appreciative.
Also if there's any other parts I should consider buying, aside from microphone, BT antenna and 54pin plug (,and NavCoder if I get that far)?