I just picked up my first Mazda since 1990. I got a 2010 Mazda5 Sport AT. I'm looking at adding heated mirrors, lowering, and adding a sunroof.

But I've got a few questions, and yes I've search but not alot of info.

Swapping out the mirror glass with heater glass. According to post all 5's are pre-wired for heated mirrors, but where are the wires/conections for the mirrors. I remove the glass and saw 5 wires going to the back of the power mirror motor. Do I need to run new wire to the car side of the connector or do I use the existing 5 wire. Either way what colors am I connecting or splicing into?

Sat radio: when I push the button nothing happens. The paperwork says sirius compatible, Just what does that means? do I need other hardware?