Radio

[Acropper]

Have 06 Lincoln ls
Installing aftermarket hu
Old unit has 4 plugs
New one has two how are you guys wiring them up

 

[04_Sport_LS]

I would contact Crutchfield Audio. Crutchfield.com

They might have some adapter harnesses.

 

[BobLS]

This is the harness you would need. It allows you to retain the factory amps, and the steering wheel controls (if your HU supports that).

Crux SWRFD-60L Wiring Interface

 

[BobLS]

Also worth noting that harness only works if you have the pigtails that came with the aftermarket head unit.

 

[joegr]

Also note that you will lose the RAP feature (the aftermarket radio will switch off with the key, instead of the door). You will likely need an external adapter to retain the steering wheel controls.

 

[BobLS]

^ +1
The steering wheel controls can be retained with the crux adapter linked above, it uses a small module with dip switches on the back, it connects to the pink plug on the 24 pin connector. Idatalink also makes a module for that too I believe, it lets you map the steering wheel controls instead of using whatever preset comes with it. Again, only if your head unit supports swc.

 

[BobLS]

As 04 sport mentioned, if you get on a live chat with someone at crutchfield they can definitely point you in the right direction. Probably the best customer service I've had experience with.