I've been a lurker, but finally joined when the 2015 WRX was released.
I'm deciding between the '15 WRX Ltd with and without Navi. The only reason I would go Navi is to get the keyless entry. I'm not sure if that is really worth the extra $$$.
My question is, if I go w/o Navi, and want to replace the HU with something like the AVH-X5600BHS, will it mess with the built in bluetooth in the car? is that separate from the sound system?
Should I ditch the built in bluetooth audio and go with the one built into the new HU?