Hey guys,
I have a new 370 touring w/ bose system but without navi.. I want navi lol so I'm thinking of buying
Pioneer AVIC-X920BT Navigation receiver at Crutchfield Signature
Now it says I should buy this as well
PAC SOEM-4 Universal 4-channel line output converter at Crutchfield.com
Why do I need that adapter, also would I need another adapter for the steering wheel controls?
Thanks!