Originally Posted by Samets
So I want to upgrade the base 2014 to the Premium models stereo. ...
Can someone identify what all of the connectors on each unit are used for?
Your '2014 base' HU (which first appeared as a step-up-from-base model in 2012) is CE617U1 (printed on the front). I describe all of the rear sockets and connections in this post
The 2014 Premium HU is PE669U1. See my post here
for descriptions of the pin-outs (on the 2012 model PE627U1). Rear connectors and their pin-outs on all of the 2012-2014 'display' HUs are the same.
Originally Posted by SVXdc
To "transplant" one of the newer display HUs into your car, you'll need adapter harnesses similar to this:
With that, the new HU will be virtually "plug-and-play" (for all of the main audio functions). The factory USB cable will connect straight into the new HU.
If you had the OEM sat radio tuner accessory, its antenna cable will connect directly to the XM antenna connector on the newer display HU.
For the dual AM/FM antenna connection, you'll need either a couple of aftermarket adapters, or the OEM adapter normally used with the display HU. I'm trying to track down the Subaru part number on the OEM piece, since it would have several advantages, including that it's a single piece
with an outer sheath protecting the coax cables
The above picture doesn't show the rear camera input RCA jack, but it would be the same as on the picture below...
People with the 'even-more-base' HU PE605U6 (with built-in BT but no USB) will need harnesses like these:
People with the bottom-end PE645U1 (no BT or USB) will need that except without the 8-pin mic socket (and you'll have to jump through some extra hoops to get BT phone call capability).
Replacing either of those HUs (PE605U6 and PE645U1), if you want to use the new HU's USB port you'll probably also want this reverse Subaru USB adapter:
Europe, Australia, and other countries get similar base HUs with different model numbers (e.g., PE415L6, PE315R6, PE205K6, etc.). This should be doable in those cars too.
For general questions, please ask in this thread. For questions about ordering, use e-mail (not
private messages through the forum). You can find my contact info on my site, ae64.com .
I continue to have a large queue of e-mails to reply to, so it could take several days. For the fastest response, try to ask as few questions as possible (do your homework) and tell me all of the information I ask for (see my site).