so you figured it out ...
there are some pretty good guides on line https://www.m5board.com/threads/xtrons-pb7639bp-android-head-unit-installation.586378/
in retrospect I wouldn't have bothered running cable under the carpet from front to back, getting the seats and carpet out is a major pita.
there are some pretty good guides on line https://www.m5board.com/threads/xtrons-pb7639bp-android-head-unit-installation.586378/
in retrospect I wouldn't have bothered running cable under the carpet from front to back, getting the seats and carpet out is a major pita.