Originally Posted by shymog
If I get a 2007 6-CD w/MP3 HU, will it fit in place of my 2002 WRX Wagon 6-disc changer? Will it connect AND fit properly, or will I need to modify the opening?
Yes it will fit. Size is still the standard double ISO-DIN. Re-use the mounting brackets from your old factory HU.
Yes, the power/speaker connection is still the same 14-pin plug that Subaru has been using since 1993.
[Added:] Same question was answered in post #49 of this very same thread.
The only issue I've seen so far is if the car you want to install into
has a subwoofer that is a plain, unpowered speaker (some Legacies and Foresters have this, in the rear cargo area, not
under one of the front seats). The speaker expects to be driven by a 5th channel subwoofer output on the car's HU. The 2007 HUs don't have that extra speaker output.