Up for sale is a brand new (still in the box and packaging) Maxxsonics MX-2 line converter for Ford OEM stereo systems. This allows you to connect an after market amplifier to your factory head unit.
I purchased this and then decided on a different setup for my system, so this wasn't used. Retails for $60 plus shipping, I'm asking $40 plus whatever actual cost to ship it to your zip code.
Email Jeremy at email@example.com
, text or call 303-941-3398 or reply to this post if interested. I am in the Denver area in case anyone local is interested as well.