I've read the first and last of this thread, skipped the middle. But need to clarification.
I've installed my BTA10100 and everything seems to work fine.
I bought the FAST adapter for a Mitsubishi. Apparently that adapter doesn't match up with a 2010 Lancer. Oh well, that's not gonna stop me. I separated the wires from that adapter and made my own FAST-9999 (kinda). After figuring which wire goes where (Thank you Bazooka for making your Mitsubishi adapter with different wire colors than the normal Bazooka wire colors
I spliced the correct wires to the correct locations behind the radio.
Question is, this is all I need to do? Or do I need to run a direct wire to the battery like a typical installation?